Big Ideas Blue Chapter 1

Solve 1-step

100

4 + y = 19

y = 15

200

8 = y - 12

y = 20

300

4x = -36

x = -9

400

w/9 = 6

w = 54

500

2/3 x = 24

x = 36

Solve 2-step

100

3x + 7 = 40

x = 33

200

9 = 2x - 13

x = 11

300

y/4 + 5 = 2

y = -12

400

6 = 14 - y/2

y = 16

500

3/4 x - 4 = 20 

x=32

Solve multistep

100

11x + x + 8 = 44

x = 3

200

5(x - 7) = -15

x = 4

300

2x - 10 - 6x + 8 = -22

x = 5

400

6(y + 4) - 2y = 16

y = -2

500

3x - 2(x + 9) + 11 = 0

x = 7

Solve variables on both sides

100

5x + 12 = 2x - 9

x = -7

200

2n - 3 = 6n + 9

n = -3

300

-8 - 5n = 64 + 3n

n = -9

400

2(3r + 5) = 4r

r = -5

500

9(y - 4) - 7y = 5(3y - 2)

y = -2

Solve for y

100

3x + y = 18

y = -3x +18

200

4x = y - 3

y = 4x + 3

300

3y = 9x - 12

y = 3x - 4

400

14x + 7y = -7

y = -1 - 2x

500

3x + 5y = 10

y = 2 - 3/5 x