Question

3y-20+7y=5y-30+2y+8y?? Me ajudem

Answer 1

3y-20+7y=5y-30+2y+8y

10y-20= 15y-30

-15y + 10y= -30 +20

-5y= -10 .(-1)

y= 10/5

y=2

Answer 2

3y+7y -5y-2y-8y = -30 +20
-5y = -10 . (-1)
5y= 10
y = 10/5
y= 2