Question

me ajudem!!! 10y - 4 (-2+2y) = 3 (-2y+4) -20

Answer 1

10y-4·(-2+2y)=3·(-2y+4)-20
10y+8-8y= -6y+12-20
2y+8= -6y-8
8y=-16
y=-16/8
y=-2

Answer 2

10y-4(-2+2y)=3(-2y+4)-20
10y+8-8y=-6y+12-20
10y-8y+6y=12-20-8
8y=-16
y=-16/8
y=-2
Resposta:  -2