Question

7 y - 8 abre parentes Y menos 4 fecha parentes igual a 9 + Y

Answer 1

7y -8(y-4)= 9+y

7y-8y+32y=9+y

7y-8y+32y-y=9

30y=9

y=9/30

Answer 2

7y-8 (y-4)=9+y 7y-8y+32=9+y 7y-8y-y=9-32 7y-9y=-23 -2y=-23×(-1) 2y=23 y=23÷2 y=11,5