Question

resolva:

a) 3x-2=x+12

b) 4x-5 = 2x+15

Answer 1

Resposta:

a) 3x -x= 12+2

2x= 14

x=14/2

x = 7

b) 4x-5=2x+15

4x -2x = 15+5

2x = 20

x= 20 / 2

x = 10