Grade 8 Algebra Review!

Simpliying Expressions

100

Simplify.

14m+3+5m-1

19m+2

200

Simplify.

7g+12-9g-2

-2g+10

300

Simplify.

4(3g-9)

12g-36

400

Simplify.

-4(5x-2)

-20x+8

500

Simplify.

3(4e-5)+22e

34e-15

Factoring Expressions

100

Factor out the GCF.

10m+15

5(2m+3)

200

Factor out the GCF.

16r-20

4(4x-5)

300

Factor out the GCF.

8h-24

8(h-3)

400

Factor out the GCF.

-15t-40

-5(3t+8) or 5(-3t-8)

500

Factor out the GCF.

16w-24x+20

4(4w-6x+5)

Solving One-Step Equations

100

m-12=3

m=15

200

w/3=5

w=15

300

y-4.5=-2.7

y=1.8

400

-4p=20.4

p=-5.1

500

2/3s=8

s=12

Solving Two-Step Equations

100

4d-9=11

d=5

200

6=4q-18

q=6

300

-15=4g+13

g=-7

400

1.2b-3.4=2.6

b=5

500

3/5z-2/5=-1/10

z=1/2

Writing Equations & Solving

100

A number plus 5 is equal to 11.

x+5=11

x=6

200

The quotient of a number and -4 is -5.

n/-4 = -5

n=20

300

11 more than a number d is negative 15.

d+11=-15

d=-26

400

Eli's bank account balance is -$42.  After he deposits some money, his balance is -$17.  How much money did Eli deposit?

-42+a=-17

a=25

500

Ellie bought 5 movie tickets and spent a total of $70.  What was the cost of one movie ticket?

5m=70

m=14