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Example Questions
Example Question #88 : Solving Equations
A tank can fill a swimming pool in two hours. A hose can fill the same swimming pool in three hours. How long will it take in hours if both the tank and hose fill the swimming pool at the same time?
Let's set-up an equation.
represents the time they will take together and
represents the job both the tank and hose finish as a whole
Find the common denominator and add the fractions. . Cross-multiply.
Divide
on both sides.
hours
Example Question #91 : Solving Equations
Solve for .
Subtract
on both sides. When adding two negative numbers, we just add the numbers and put a minus sign in the end.
Example Question #222 : Equations
Solve for .
Subtract
on both sides. Since
is greater than
and is negative, our answer is negative. We treat as a normal subtraction problem.
Example Question #92 : Solving Equations
Solve for .
Subtract
on both sides.
Divide
on both sides.
Example Question #91 : Solving Equations
Solve for .
Add
on both sides.
Example Question #94 : Solving Equations
Solve for .
Add
on both sides. Since
is greater than
and is negative, our answer is negative. We treat as a subtraction problem.
Example Question #92 : Solving Equations
Solve for .
Add
on both sides.
Divide
on both sides.
Example Question #572 : Basic Single Variable Algebra
Solve for .
Add
on both sides.
Subtract
on both sides.
Divide both sides by
.
Example Question #94 : Solving Equations
Solve for .
Add
on both sides.
Subtract
on both sides.
Divide
on both sides.
Example Question #92 : Solving Equations
Solve for .
There are TWO ways:
Method
Distribute the
.
Add
on both sides.
Divide
on both sides.
Method :
Divide
on both sides.
Add
on both sides.
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