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# Solving Equations and Evaluating Word Problems

1.) how do you evaluate this expression M^2-6m-8

2.) How do you evaluate this 2x6+28/4-7

3.) -4/7w=8

4.) How do you solve this for x? 1/5x-5/2= -8/3

5.) How do you use the distributive property to remove these parentheses?
6(4+y)

6.) How do you graph this on a number line? x<1 or x>2

7.) A washer and dryer cost \$706. the washer cost 56 dollars more than the dryer. what was the cost of the dryer?

8.) How do you solve for z? z-7>20

9.) What is an ordered pair for 6a+b=9 (a,b=?)

10.) How do you solve for w? 8(w+7)+2w=-4

#### Solution Preview

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1.) how do you evaluate this expression M^2-6m-8

Do you know the value of m
For example, let m = 2,
Then substitute 2 for m in the above expression:

2.) how do you evaluate this 2x6+28/4-7
Remember that multiplication and division have higher priority than the addition and subtraction.
So we need to evaluate them first.

In the above calculation, we find 2 * 6 = 12 and 28/4 = 7 first
Then we obtained an expression with addition and subtraction only.
Evaluate 12 + ...

#### Solution Summary

The expert solves equations and evaluates word problems. The expression is provided.

\$2.19