Question

3(1-y)-2y-2=9(y-1)+3?

Answer 1

fica assim:
$3(1-y)-2y-2=9(y-1)+3$
$3-3y-2y-2=9y-9+3$
$-3y-2y-9y=-9+3-3$
$-14y=-9(-1)$
$14y=9$
$y= \frac{9}{14}$
espero ter ajudado