All High School Math Resources
Example Questions
Example Question #4 : How To Do Word Problems Where Two Quantities Are Unknown
Two cars leave a city at the same time. One heads east at and the other heads west at
. How far apart are they after
hours?
Remember, . If we look at the car going east, this would mean:
If we look at the car going west, then:
Therefore, we need to add the two distances to find the total distance between them.
Example Question #31 : Algebraic Equations
To isolate on one side, subtract seven from both sides
Example Question #2 : How To Solve One Step Equations With Integers In Pre Algebra
To solve the equation for , you must isolate
on one side. Here you can divide both sides by 3.
Example Question #32 : Algebraic Equations
Solve for .
To solve equations, you must perform the same operations on both sides.
Subtract 5 from both sides.
Example Question #3 : How To Solve One Step Equations With Integers In Pre Algebra
Solve the following equation for .
In order to solve a one step equation, we want to isolate the variable. To do this, we pay special attention to what is being done to the variable. In this case we are multiplying the variable by . To "undo" this, we use the inverse of multiplication, which is division; thus we divide by
on both sides. Note that we are dividing by
since that is what is being multiplied; don't be tricked into dividing by
.
Dividing both sides by , we get
.
Example Question #3 : How To Solve One Step Equations With Integers In Pre Algebra
Solve for if
.
To solve for we must get all of the numbers on the other side of the equation as
.
To do this in a problem where is being multiplied by a number, we must divide both sides of the equation by the number.
In this case the number is so we divide each side of the equation by
to make it look like this
.
The s cancel to leave
by itself.
Then we perform the necessary division to get the answer of .
Example Question #2 : How To Solve One Step Equations With Integers In Pre Algebra
Solve for if
?
To solve for we must get all of the numbers on the other side of the equation as
.
To do this in a problem where is being subtracted by a number, we must add the number to both sides of the equation.
In this case the number is so we add
to each side of the equation to make it look like this
The s cancel on the left side and leave
by itself.
Then we perform the necessary addition to get the answer of .
Example Question #4 : How To Solve One Step Equations With Integers In Pre Algebra
Solve for :
Remembering the final goal is to get the alone on one side of the equation.
To get rid of the , we perform the opposite operation. We add
to each side of the equation, cancelling out the
on the left side.
This brings the equation to .
Example Question #2 : How To Solve One Step Equations With Integers In Pre Algebra
If what is
?
If you put
in for
. Therefore it becomes
.
Finally,
Example Question #1 : How To Solve One Step Equations With Integers In Pre Algebra
Simplify:
First you multiply the coefficients .
Then you multiply According to the laws of exponents, when you multiply two numbers with similar bases (both
in this case) then you simply add the exponents
.
Therefore, the final answer is .
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