20-3y=-1

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Solution for 20-3y=-1 equation:



20-3y=-1
We move all terms to the left:
20-3y-(-1)=0
We add all the numbers together, and all the variables
-3y+21=0
We move all terms containing y to the left, all other terms to the right
-3y=-21
y=-21/-3
y=+7

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