3y-21=12y

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Solution for 3y-21=12y equation:


3y-21=12y

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

We move all terms containing y to the left and all other terms to the right. 
+3y-12y=+21

We simplify left and right side of the equation. 
-9y=+21

We divide both sides of the equation by -9 to get y. 
y=-2.33333333333

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