Unit 6 - Algebra

One Step

100

x + 21 = 33

x = 12

200

m - 12 = 32

m=44

300

-7x = 63

x = -9

400

n / 8 = 4

n = 32

500

-0.7x = 4.9

x = -7

Two Step

100

5x - 7 = 13

x = 4

200

-6 = x/4 - 8

x = 8

300

-7 + 6n = -37

n = -5

400

31.5 = 6.6x + 11.7

x = 3

500

-36.1 + 2.1x = -44.92

n = -4.2

Simplification

100

7x = 4x + 33

x = 11

200

7n - 36 = -2n

n = -4

300

6x + 2 = 12 - 4x

x = 1

400

2x - 6 = -14x - 6

x = 0

500

-3.3x + 10.1 = 1.1x - 2.66

x = 2.9

Distribution

100

-2(x + 4) = 12

x = -10

200

30 = 5(4x - 2)

x = 2

300

8(-2x + 4) = -64

x = 6

400

1.1(2b + 4) = 19.8

b = 7

500

10 - 2b = 3(4b - 5)

b = 25/14

Fractions

100

(3/4)n = 12

n = 16

200

12/x = 36

x = 1/3

300

(7/10)x= -2/5

x = -4/7

400

(5/12)x = (2/6)x + 7

x = 84 

500

(-6/7)x + 4 = 10

x = -7