-y/2=-21

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Solution for -y/2=-21 equation:



-y/2=-21
We move all terms to the left:
-y/2-(-21)=0
We add all the numbers together, and all the variables
-y/2+21=0
We multiply all the terms by the denominator
-y+21*2=0
We add all the numbers together, and all the variables
-1y+42=0
We move all terms containing y to the left, all other terms to the right
-y=-42
y=-42/-1
y=+42

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