Question

por favore ajudem 5(3-x)=4x+18

Answer 1

5(3-x) = 4x + 18
15 -5x = 4x + 18
-9x = 3
x = -3/9
x = -1/3

Answer 2

Veja: 5.(3 - x) = 4x + 18 15 - 5x = 4x + 18 -5x - 4x = 18 - 15 -9x = 3 (-1) 9x = -3 x = -3/9 x = -1/3 S = {-1/3}