Solving One-step Equations

Factoring Expressions

100

Factor: 4a - 8

4(a - 2)

200

Factor: -15x + 9

3(-5x+3) 

or -3(5x-3)

300

Factor:  -21x - 18y

3(-7x-6y) or -3(7x+6y)

400

Factor: 18mn + 27m

9m(2n+3)

500

3a -16

Cannot be Factored

Addition Equations

100

Solve: 19 = x + 7

x=12

200

Solve: y + 15 = 11

y = -4

300

Solve:  y + 5 = -11

y = -16

400

Solve: a + 3.5 = -14.9

a = -18.4

500

Solve:  m + (5/6) = 11/12

m = 1/12

Subtracting Equations

100

w - 7 = 11

w = 18

200

-1 = q - 8

q = 7

300

r - 8.5 = -2.1

r = 6.4

400

z - 9.4 = 3.6

z = 13

500

s - (1/9) = 5/18

s = 7/18

Multiplying Equations

100

-5x = -15

x = 3

200

63 = -9d

d=-7

300

-0.8m = 5.6

m = -7

400

(-7/10)n = -3/10

n = 3/7

500

12/13 = (15/26)v

v = 8/5 or  1 3/5

Division Equations

100

m/10 = 7

m = 70

200

12 = h/-3

h = -36

300

-4 = x/2

x = -8

400

-30 = v/6

v = -180

500

x/1.1 = -0.9

x = -0.99