Answer:
y=-10
Step-by-step explanation:
y+5=-5
y = -15
y -3(y+5)=15 (distribute -3 into the parentheses)
y + y(-3)+5(-3)=15
y-3y-15=15
-2y -15 = 15 (add 15 to both sides)
-2y = 15 + 15
-2y = 30 (divide both sides by -2)
y = 30 / -2 = -15
