9-5y=21

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Solution for 9-5y=21 equation:



9-5y=21
We move all terms to the left:
9-5y-(21)=0
We add all the numbers together, and all the variables
-5y-12=0
We move all terms containing y to the left, all other terms to the right
-5y=12
y=12/-5
y=-2+2/5

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