Question

x + x/2 = 39 oq o x equivale

Answer 1

x/1 + x/2 = 39
MMC de 2 e 1 = 2
2x/2 + x/2 = 39
Risca o 2
2x+x = 39
3x = 39
3x/3 = 39/3
X= 13