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GED Math : GED Math

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All GED Math Resources

4 Diagnostic Tests 263 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

Example Question #14 : Solving For The Variable

If 5(x-5) = 50 , what is the value of ?

Possible Answers:

Correct answer:

Explanation:

The first step in the process of solving for in this problem is to use the distributive property to distribute the to what is inside the parentheses.

5x - 25

The next step is to isolate the variable by using inverse operations. In this example, in order to get rid of the , you would add to both sides of the equation.

5x - 25 + 25 = 50 + 25

5x = 75

The next step is to divide both sides by the coefficient, (the number next to the variable), which in this case is .

$\frac{5x}{5} = x$

$\frac{75}{5} = 15$

x = 15

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Example Question #621 : Ged Math

If x + 12 = 30 , then what is the value of ?

Possible Answers:

Correct answer:

Explanation:

In order to solve for the value of you must isolate the variable. This is done by subtracting the constant in this equation, which is 12, from both sides of the equation.

x + 12 - 12 = 30 - 12

x = 18

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Example Question #65 : Algebra

Solve for : 2x =-2y+7x

Possible Answers:

$x=\frac{2}{5}y$

$x=-\frac{2}{5}y$

$x=-\frac{2}{9y}$

$x=-\frac{2}{5y}$

$x=-\frac{2}{9}y$

Correct answer:

$x=\frac{2}{5}y$

Explanation:

In order to solve for , we will need the equation to be in terms of , and isolate the variable .

Solve by grouping the terms together. Subtract on both sides.

2x-(7x) =-2y+7x-(7x)

-5x = -2y

Divide by negative five on both sides.

$\frac{-5x }{-5}= \frac{-2y}{-5}$

The answer is: $x=\frac{2}{5}y$

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Example Question #66 : Algebra

Solve for : 2x+18 = -9(2x)+2x

Possible Answers:

$\frac{11}{18}$

$\textup{No solution.}$

Correct answer:

Explanation:

Distribute the term on the right side of the equation.

2x+18 = -18x+2x

Combine like terms.

2x+18 = -16x

Subtract on both sides.

2x+18 -2x= -16x-2x

18 = -18x

Divide by negative on both sides.

$\frac{18}{-18} = \frac{-18x}{-18}$

The answer is: x=-1

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Example Question #16 : Solving For The Variable

Which of the following makes this equation true:

12y-3=33

Possible Answers:

y=2

y=3

y=4

y=6

y=7

Correct answer:

y=3

Explanation:

To answer the question, we will solve for y. So, we get

12y-3=33

12-3+3=33+3

12y-0=36

12y=36

$\frac{12y}{12} = \frac{36}{12}$

y = 3

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Example Question #21 : Solving For The Variable

Which of the following makes this equation true:

9x=72

Possible Answers:

x=7

x=8

x=6

x=4

x=9

Correct answer:

x=8

Explanation:

To answer the question, we will solve for x, So, we get

9x=72

$\frac{9x}{9} = \frac{72}{9}$

x = 8

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Example Question #22 : Solving For The Variable

Solve for b.

$\frac{b}{6} = 12$

Possible Answers:

b = 2

b = 6

b = 72

b = 18

b = 36

Correct answer:

b = 72

Explanation:

To solve for b, we want b to stand alone. So, we get

$\frac{b}{6} = 12$

$\frac{b}{6} \cdot 6 = 12 \cdot 6$

b = 72

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Example Question #72 : Single Variable Algebra

Which of the following makes this equation true:

7y-5=51

Possible Answers:

y=9

y = 8

y=7

y=6

y=4

Correct answer:

y = 8

Explanation:

To answer this, we will solve for y. So, we get

7y-5+5=51+5

7y-0=56

7y=56

$\frac{7y}{7} = \frac{56}{7}$

y = 8

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Example Question #24 : Solving For The Variable

Which of the following makes this equation true:

13y+9=87

Possible Answers:

y=12

y=6

y=9

y=7

y=8

Correct answer:

y=6

Explanation:

To answer this question, we will solve for y. We get

13y+9-9=87-9

13y+0=78

13y=78

$\frac{13y}{13} = \frac{78}{13}$

y= 6

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Example Question #22 : Solving For The Variable

Which of the following makes this equation true:

3x+7=31

Possible Answers:

x=9

x=6

x=4

x=8

x=7

Correct answer:

x=8

Explanation:

To answer the question, we will solve for x. So, we get

3x+7-7=31-7

3x-0=24

3x=24

$\frac{3x}{3} = \frac{24}{3}$

x=8

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All GED Math Resources

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GED Math : GED Math

Study concepts, example questions & explanations for GED Math

All GED Math Resources

Example Questions

Example Question #14 : Solving For The Variable

Example Question #621 : Ged Math

Example Question #65 : Algebra

Example Question #66 : Algebra

Example Question #16 : Solving For The Variable

Example Question #21 : Solving For The Variable

Example Question #22 : Solving For The Variable

Example Question #72 : Single Variable Algebra

Example Question #24 : Solving For The Variable

Example Question #22 : Solving For The Variable

All GED Math Resources

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