Question

Encontre o valor de x
a) 4/3 + × = 2x

b)5x/3 + 4 = 2x/3

Answer 1

a)
4/3 + x = 2x
4/3 = 2x - x
4/3 = x

b)
5x/3 + 4 =2x/3
5x/3-2x/3 = -4       mmc de 3 e 3 = 3
5x   - 2x
---------- = -4        passa 3 multiplicando por -4 = -12
      3

5x-2x=-12
3x=-12
x=-12/3
x= -4