Question

Alguém sabe????
dou 10 pontos!

Answer 1

a) 3x-8=15

3x=15+8

3x=23

x=23/3

x=7,66...

b) 3x-2=22-x

3x+x=22+2

4x=24

x=24/4

x=6

c)10x-27=1+6x

10x-6x=1+27

4x=28

x=28/4

x=7