PA Lesson 3.1-3.6 Review

One-Step Equations

100

x+2=7

x=5

200

x-8= -10

x= -2

300

x/5 = 9

x = 45

400

-6x = -42

x=7

500

x/-3 = 8

x = -24

Rational Equations

100

0.4x = 10

x=25

200

(2/3)x = 8

x=12

300

(-1/2)x = -7

x = 14

400

x/-3.5 = 9

x = -31.5

500

x + (4/5) = 2/3

x = -2/15

Two-Step Equations

100

x² - 9 = 16

x = -5, 5

200

-2x + 5 = 13

x = -4

300

144x² = 36

x = -1/2, 1/2

400

(x+7)/(-2) = 14

x = -35

500

(-1/3) + x² = 1/9

x = -2/3 , 2/3

Variables (One Side)

100

2x - 8x + 1 = 49

x = -8

200

19 = 10 - 5w + 9w - 7

w = 4

300

-52 = 4(3n - 1)

n = -4

400

-18 = 5 - (6k - 19)

k = 7

500

r + 4 - 3(r - 9) = 5

r = 13

Variables (Both Side)

100

w - 6 = -4w - 11

w = -1

200

17 - 5r + 9r = -12 + 6r -1 

r = 15

300

-3(8k + 5)= 3(9 - k)

k = -2

400

-2/3(15x + 3) = -3x - 9

x = 1

500

-3(3m - 10) - 7 = -5(m + 1) + 3m

m = 4