-12=1y-21

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Solution for -12=1y-21 equation:


-12=1y-21

We simplify the equation to the form, which is simple to understand 
-12=1y-21

We move all terms containing y to the left and all other terms to the right. 
-1y=-21+12

We simplify left and right side of the equation. 
-1y=-9

We divide both sides of the equation by -01 to get y. 
y=9

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