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unit 1

100

7x=35

x=5

200

4 = -0.8n

n = -5

300

6 = -w/8

w = 48

400

-2 = 6/7 p

w = 48

500

-4.3g = 25.8

g = -6

unit 5

100

2.2x + y = 12.5

y = 12.5 - 22x

200

1.4x - 4y =1

y=(1.4 x -1) / 4 or y = 0.35 x - 0.25

300

2.1x + 4.2y = 14.7

y = 3.5 - 0.5x

400

-5.7x - 1.9y = 11.4

y=6 - 3x

500

0.8x - 3.2y = -11.2

y = 0.25x + 3.5

unit 3

100

if the measure of <1 = 124, then the measure of <4 =

124

200

if the measure of <6 = 120, then the measure of <6 =

120

300

if the measure of <4 = 55, then the measure of < 2 =

55

400

if the measure of <3 = 118.7, then the measure of <2 =

118.7

500

if the measure of < 2 = 48, then the measure of <3 =

48

unit 4

100

solve for y

y - 3x = 1

y = 1 + 3x

200

solve for y 

5x + 2y = 4

y = 2 - (5/2) x

300

solve for y

 x + 0.5y = 1.5

1.5 - x

400

solve for y

-1/3y + 4 x = 3

y = -9 + 12x

500

identify the slope and equation

y = 4x - 5

slope = 4, y-intercept = -5