Solving One-step Equations

Expressions

100

Combine like terms

3x + 4x

7x

200

combine like terms

-4y + 3y

-y

300

2x + 4y - 3x + 2y

-x + 6y

400

distribute and write the simplified expanded form

3(2x - 4)

6x + 3(-4) = 6x - 12

500

Factor the expression

12x - 18

6(2x - 3)

Solving Equations By Subtracting

100

Solve 34 + x = -10

x = -10 - 34 = -44

200

a + 13 = -24

a = -24 - 13 = -37

300

3.5 + b = 6.1

b = 6.1 - 3.5 = 2.6

400

c + 56 = 200

c = 200 - 56 = 144

500

x + 3/7 = 5/7

x = 5/7 - 3/7 = 2/7

Solving Equations By Adding

100

j - 34 = 200

j = 200 + 34 = 234

200

- 46 + h = 898

h = 898 + 46 = 944

300

n - 6.2 = 15.1

n = 6.2 + 15.1 = 21.3

400

-4.6 + j = 1.7

j = 4.6 + 1.7 = 6.3

500

x - 53 = - 245

x = -245 + 53 = -192

Solving Equations By Multiplying

100

r/6=390

r = (6)(390) = 2,340

200

t/30=6

t = (30)(6) = 180

300

r/35 = 70

r = (35)(70) = 2450

400

x/45 = 90

x = (45)(90) = 4050

500

y/6 = -400

y = 6(-400) = -2400

Solving Equations By Dividing

100

7.8h = 15.6

h = 15.6 - 7.8 = 2

200

4x = 360

x = 360 /4 = 90

300

3h = 54

h = 54 / 3 = 18

400

5c = 500

c = 500 / 5 = 100

500

-6x  = 480

x = 480 / -6 = -80