Question

10y-5(1+y)=3(2y-2)-20 pliss

Answer 1

10y-5(1+y)=3(2y-2)-20 pliss
10y - 5 - 5y = 6y - 6 - 20
10y - 5y - 5  = 6y - 26
5y - 5 = 6y - 26
5y - 5 - 6y = - 26
5y - 6y = - 26 + 5
-1y = - 21
y = - 21/-1
y = + 21/1
y = 21  ( resposta)

Answer 2

Resposta:

y = 21

Explicação passo-a-passo:

$10y -5(1+y)=3(2y-2)-20\\10y-5-5y=6y-6-20\\5y-5=6y-26\\5y-6y=-26+5\\-y=-21\:\times(-1)\\\boxed{y=21}$