Question

resolva as seguintes equaçoes: 3x=15 2x=14 4x=-12 7x=-21

Answer 1

3x = 15

x = 15/3

x = 5

2x = 14

x = 14/2

x = 7

4x = -12

x = -12/4

x = -3

7x = -21

x = -21/7

x = -3