Question

qual a resposta de 10y-5(1+y)=3(2y-2)-20

Answer 1

Camimilla,

$10y - 5(1+y) = 3(2y-2) - 20$
$10y - 5 - 5y = 6y - 6 - 20$
$10y - 5y - 6y = -6 - 20 + 5$
$10y - 11y = -26 + 5$
$-y = -21$
$y = 21$

Answer 2

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