CH. 3 Linear Equations

Simplifying Expressions

100

-18.7h + 4h - 0.3h

-15h

200

-4/7 + 2/7x -14x + 4/7

-13 5/7x

300

2/3(3r + 12) + r

3r + 8

400

3/4x + 2(9-1/4x)

1/4x +18

500

(12x-6)4 1/6

50x - 25

Solve Equations

100

x - 4.25 = -4

x = 0.25

200

7x - 17 = 60

x = 11

300

17x - 23x + 11.5x = 44

x=8

400

8 + 2/3(6x +30) = 80

x=13

500

1/4x + 17 = x -4

x=28

Solve Equations Pt. 2

100

6/7x = 12

x = 14

200

x/-2.5 = 8

x = -20

300

 15= 1/2 + 3/2x + 10 

x = 3

400

4x -4(7-5x)=-20

x=1/3

500

5+1/3(6x +9) = -(x-4)

x=-1 1/3

Solve Equations pt. 3

100

x + 12 = 3.5

x= -8.5

200

82 + 0.6x = 85

x=5

300

18 -5x +7x -4 = 28

x = 7

400

8.6x + 2.2(2x-5) = 54

x=5

500

1/4(40-8x)=19x+2-5x

x=1/2

Special Cases

100

-4x + 12 = 4x + 20

One solution

x=-1

200

-2x + 7 = -2x + 7

All Real Numbers

300

0.25(8x +4) = 2x - 4

No solution

400

0.5(6x+8) = 2x + 4 + x

All Real Numbers

500

8x + 7(2-3x) = -6(2x+5)

x=44