0-3y=-21

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Solution for 0-3y=-21 equation:


0-3y=-21

We simplify the equation to the form, which is simple to understand 
0-3y=-21

We move all terms containing y to the left and all other terms to the right. 
-3y=-21-0

We simplify left and right side of the equation. 
-3y=-21

We divide both sides of the equation by -3 to get y. 
y=7

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