Answer:
y = [tex]\bf~\frac{55}{-8}~or~-6,875[/tex]
Step-by-step explanation:
y - 3(3y - 7) = 76
y - 9y + 21 = 76 (here we get rid of the parenthesis)
y - 9y = 76 - 21 (here we take 21 to the other side of the equation)
y - 9y = 55 (here we subtract 76 - 21)
-8y = 55 (here we subtract y - 9y)
y = 55/-8 (here we take -8 to the other side of the equation)
y = [tex]\bf~\frac{55}{-8}~or~-6,875[/tex]
Hope it helped,
BiologiaMagister
Answer:
[tex]y - 3(2y - 7) = 76 \\ y - 6y + 21 = 76 \\ - 5y = 55 \\ y = \frac{55}{( - 5)} \\ \boxed{y = - 11}[/tex]