Ecuaciones lineales ax+b=c

2x +60 = 40

x – 2x = -4

x + 14 = 0

-3x = 27

2x – 2 = -14

3x + 6 = 9

-x = 18

x = 1

x = -10

x = -14

x = -6

x = -18

x = 4

x ) -9