Question

2) A expressão (y + x)+ x - y) é igual a:
a) ( ) x-y
b) ( ) 2x - y
c) ( ) - X - y
d) () -x + y​

Answer 1

$(\frac{1}{3}y+\frac{1}{2}x)+(\frac{3}{2}x-\frac{4}{3}y)=$

$\frac{y}{3}+\frac{x}{2}+\frac{3x}{2}-\frac{4y}{3}=$

$\frac{4x}{2}-\frac{3y}{3}=$

$2x-y$