SOLUTION: how do you do these types of equations?: 5-2(y+1)=21

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Question 10945: how do you do these types of equations?:
5-2(y+1)=21
Answer by rahman(247) About Me  (Show Source):
You can put this solution on YOUR website!
5-2(y+1)=21
5-2*y + (-2)*1 = 21
5 - 2y - 2 = 21
5 - 2 -2y = 21
3 - 2y = 21
-2y = 21 - 3
-2y = 18
y = 18 : (-2)
y = -9