7(y+4)=21

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Solution for 7(y+4)=21 equation:


7 (y+4)=21

We simplify the equation to the form, which is simple to understand 
7(y+4)=21

Reorder the terms in parentheses
+(+7y+28)=21

Remove unnecessary parentheses
+7y+28=+21

We move all terms containing y to the left and all other terms to the right. 
+7y=+21-28

We simplify left and right side of the equation. 
+7y=-7

We divide both sides of the equation by 7 to get y. 
y=-1

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