Question

Resolva 3/1+3/1+3/1-x=2

Answer 1

3+3+3-x = 2
9-2 = x
x = 7

Answer 2

oi
$\frac{3}{1}+ \frac{3}{1}+ \frac{3}{1}-\frac{x}{1}= \frac{2}{1} fica \frac{9-x}{1}= \frac{2}{1} fica 9-x=2 fica -x=2-9$ $-x=-7 fica x=7$