Question

me ajudem, quanto valor de x:

Answer 1

h)x/3 = x/5 + 4
m.m.c = 15
5 x/15 = 3 x/15 + 60/15
eliminar o denominador
5 x = 3 x + 60
5 x - 3 x = 60
2 x = 60
x = 60/2
x = 30