Question

URGENTE QUAL A SOLUÇÃO DESSES PROBLEMAS?

a) x+6=2-2x
b)y/2 + y/3 =3y/4 - 6

Answer 1

a) x + 6 = 2 - 2x 
x + 2x = 2 - 6
3x = -4
x = -4/3

b)y/2 + y/3 = 3y/4 -6
y/2 + y/3 - 3y/4 = -6
mmc=12
$\frac{6y+4y-9y}{12}=-6$
$\frac{y}{12}=-6$
y = 12.(-6)
y = -72