Question

quanto é:
3-x/8 = x+1/4 - x/3
a) x=4
b) x=7
c) x=2
d) x=3​
rápido!!

Answer 1

A resposta vai dar exatamente a x=7

Answer 2

3-x/8 = x+1/4 - x/3

3(3-x) = 6(x+1) -8x

9-3x = 6x+6-8x

9-3x = -2x +6

-3x+2x = 6-9

-x=-3

x=3

alternativa : D) x=3