Answer:
y=2
Step-by-step explanation:
y+7=9(y-1)
y+7=9y-9
y-9y=-9-7
-8y=-16
_________
[tex] \: [/tex]
[tex] \frac{1}{3} (y + 7) = 3(y - 1)[/tex]
[tex] \frac{y + 7}3 = 3(y - 1) [/tex]
[tex]y + 7 = 9(y - 1)[/tex]
[tex]y + 7 = 9y - 9[/tex]
[tex]y - 9y = - 9 - 7[/tex]
[tex] - 8y = - 16[/tex]
y = 2✔
