Question

Resolva as equações:

a) 6.(3X-4)=2.(7X-8)

b) 3.(X-1)-15

Answer 1

Resposta:

6.(3x-4) = 2.(7x-8)

18x-24 = 14x - 16

18x - 14x = -16 + 24

4x = 8

x=8/4

x=2

3.(x-1)-15=0

3x-3-15=0

3x=15+3

3x=18

x=18/3

x=6