Equations

Adding/Subtracting Equations

100

-190 + x = 70

x = 260

200

-85 + x = -205

x = -120

300

32 - x = 36

x = -4

400

50 - x = -12

x = 62

500

-120 - x = -14

x = -106

Multiplying/Dividing Equations

100

2x = -48

x = -24

200

x/3 = 15

x = 45

300

-x/4 = 60

x = -240

400

2/5x = 20 

x = 50

500

-42 = -3/7x

x = 98

Combining Equations

100

4x + 6x = 90

x = 9

200

5x + 15 - 4x = 21

x = 6

300

3x - 20 + 1 - 2x = -18

x = 1

400

5x + 10 - 2 - 4x = -14

x = -22

500

15x - 4 - 6 - 14x - 1 = -11

x = 0

FINAL

500

18x - 14 - 6 = 17x + 19 - 2

x = 37