Question

RESOLVA
b. 5. (x-8) = 100
c. 3.(2x -8) +12=60

Answer 1

b. 5.(x-8)=100 / resolvendo: 5x-40=100 /
5x= 100+40 / x= 140 % 5 = 28

c. 3.(2x-8)+12=60 / resolvendo: 6x-24+12=60 /
6x= 60+24-12 / x= 72%6 = 12