Solving Equations Review

Combining like terms

100

3x + 5 - 2x

x + 5

200

5x + 3 - 2x + 8

7x + 10

300

7x - 6y + 2 - 3y

7x - 9y +2

400

8y + 2x - 10y + 4 + 7x

-2y + 9x + 4

500

10 + 2x - 3y - 9x + 3y -2

8 - 7x

Distributive property

100

2(x + 10)

2x + 20

200

4(7 + 2x)

28 + 8x

300

6(4x - 6)

24x - 36

400

-4(5x + 2)

-20x - 8

500

-9(3x - 6)

-27x + 54

Two step equations

100

2x + 4 = 14

x=5

200

-9x + 1 = -80

x=9

300

2+ x/4 = -2

x=-16

400

x/2 - 10 = -6

x=8

500

9x - 7 = -7

x=0

Multi-step Equations

100

8x + 13x = 42

x=2

200

10(1 + 3x) = -50

x=-2

300

4(-x + 6) = 12

x=3

400

-6(1 - 5x) = 54

x=2

500

-11-5a=6(5a+4)

x=-1

Variables on both sides

100

4x = x + 3

x=1

200

-3x = 5x + 8

x=-1

300

-2x + 1 = -4x +9

x=4

400

8(1+5x) +5 = 13 +5x

x=0

500

5(2x+6)=-4(-5-2x)+3x

x=10