-3(21)-3y=3

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


-3(21)-3y=3

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

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

Remove unnecessary parentheses
-63-3y=+3

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

We simplify left and right side of the equation. 
-3y=+66

We divide both sides of the equation by -3 to get y. 
y=-22

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