Chapter 7 Test Review

Two Step Equations

100

2a - 7 = -15

a = -4

200

1.5y + 3.4 = 7.9

y = 3

300

3 = -6w + 15

w = 2

400

c/4 + 10 = 22

c = 48

500

2/3y - 9 = 5 

21

Multi Step Equations

100

8m - 3m = 4 

m = 4/5

200

6 - 2y - y = 12 

y = -2

300

1.06x - 3 = 0.71

x = 3.5

400

-2(5 + 6c) + 16 = -90

c = 8

500

1/4(b - 7) = 8

b = 39

Variables on Both Sides

100

7x = 22 - 4x

x = 3

200

2a - 24 - 3a = 5a

a = -4

300

4x - 26 = 5(2 - x)

x = 4

400

8(b + 3) = 4b - 4

b = -7

500

2x - (9 - 3x) = 8x - 11

x = 2/3

Inequalities

100

2a - 3 > 11

a > 7

200

23 < 7 - 4x

x < -4

300

8/9x + 5 < -3

x <-9

400

-17 > x/3 - 19

x < 6

500

x + 4x + 9 >= 6

x >= -1

Formulas

100

Solve for m 

r = 6km

m = r/6k

200

Solve for y

8x = 6y

y = 4/3x

300

Solve for g

Q = gp

g = Q/p

400

Solve for b

a = b - 2c

b = a + 2c

500

Solve for h

e = h/6 + 11

h = 6e - 66