15(2x – 4) = 8x -18 resova porfavor

Resposta :

15(2x-4)=8x-18

Aplica a distributiva

15.2x-15.4=8x-18

30x-60=8x-18

Isola o x

30x-8x=-18+60

22x=42

x=42/22

x=21/11