Question

X/3+4x = 39 , como eu resolvo isso ?

Answer 1

$\frac{x}{3}+4x= 39 \\ \\ \frac{x+12x}{3} = 39 \\ \\ \frac{13x}{3} =39 \\ \\ 13x=39*3 \\ \\ x= \frac{117}{13} \\ \ \boxed{ x= 9}$

Answer 2

X/3+4x=39
X+12X=117
13x=117
X=9