1.2-1.3 Review

2-Step Equations

100

-21=-21-b

b=0

200

39=28-b

b=-11

300

10b+18=28

b=1

400

-6y-31=5

y=-6

500

74=-47-11y

y=-11

3-Step Equations

100

-5x-5=-3x+5

x=-5

200

6x+8=7x+7

x=1

300

-12x-2=-7x-17

x=3

400

7x-1=5x+5

x=3

500

-7x+6=-9x-2

x=-4

Multi-Step Equations

100

6(2y+3)=42

y=2

200

3(y+7)=24

y=1

300

2(3x-4)+x-1=-16

x=-1

400

-4x+2(x+4)=-7x-(x+1)

x=-3/2

500

6=3+2(-x-8)

-19/2

Decimal Equations

100

-8.7=-0.3+3.5c

-2.4

200

-6.7=-3.1-2.4x

x=1.5

300

4.58=1.9y+2.3

y=1.2

400

-2.6-3.4a=0.12

a=-0.8

500

5.8=2.2-2.4y

y=-1.5

Fractional Equations

100

5=-1/9z-2

z=-63

200

21=1/4y+19

y=8

300

-1/8=-5/8b+1/4

b=3/5

400

3/5-1/7b=1/4

b=49/20

500

-5/7=3/4y-6/7

y=4/21