3.1 - 3.4 Review

Two Step Equations

100

Solve for b

4b + 2 = 22

b = 5

200

Solve for x

-1.5x - 3.2 = 4.3

x = -5.2

300

Solve for x

2x - 3.5 = 7

x = 5.25

400

Solve for n

15 - n/4 = 10

n = 20

500

Solve for p

-1.9 = 0.5(p + 1.7)

p = -5.5

Combine Like Terms to Solve

100

Solve for n

1/2n - 3n = 5

n = - 2

200

Solve for a

- 15a + a = 70

a = - 5

300

Solve for b

72 = 16b - 28b

b = - 6

400

Solve for y

- 17y - 3y = - 100

y = 5

500

Solve for x 

-2.3x - 4.2x = - 66.3

x = 10.2

Equations with variables on both sides

100

Rewrite the equation with the variable on the left

5y + 3 = - 2y - 1

5y + 2y = - 1 - 3

200

Rewrite the equation with the variables on the right

10 - 4a = 6 + a

10 - 6 = a + 4a

300

Rewrite the equation with the variable on the right 

8g - 22 = 12g + 55

-22 - 55 = 12g - 8g

400

Solve for r

5r + 9 = - 4r + 36

r = 3

500

Solve for m

0.8g - 2.2 = 1.2g + 5.5

g = - 19.25