Expressions & Equations Containing Variables

Expressions (+)

100

3(x + 2)

3x + 6

200

5(y + 6)

5y + 30

300

4(2z + 3)

8z + 12

400

7(4w + 5)

28w + 35

500

9(6e + 8)

54e + 72

Expressions (-)

100

2(b - 1)

2b - 2

200

5(d - 4)

5d - 20

300

4(3p - 4)

12p - 16

400

7(6v - 3)

42v - 21

500

9(7y - 5)

63y - 45

Expressions (x)

100

2(x)

2x

200

147(x)

147x

300

5(2x)

10x

400

8(7w)

56w

500

9(11z)

99z

Same-Side Equations

100

5w + 2w = 7

w = 1

200

13z - 3z = 60

z = 6

300

13r - 6r = 49

r = 7

400

15f + 20f = 70

f = 2

500

47s - 29s = 72

s = 4

Opp.-Side Equations

100

4x + 4 = -2x + 10

x = 1

300

-3(1 + 6r) = 14 - 1r

r = -1

500

2(10 - 2x) = 4(2x + 2)

x = 1