-3(y+21)=-12

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Solution for -3(y+21)=-12 equation:


-3(y+21)=-12

We simplify the equation to the form, which is simple to understand 
-3(y+21)=-12

Reorder the terms in parentheses
+(-3y-63)=-12

Remove unnecessary parentheses
-3y-63=-12

We move all terms containing y to the left and all other terms to the right. 
-3y=-12+63

We simplify left and right side of the equation. 
-3y=+51

We divide both sides of the equation by -3 to get y. 
y=-17

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