20=171-y

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Solution for 20=171-y equation:



20=171-y
We move all terms to the left:
20-(171-y)=0
We add all the numbers together, and all the variables
-(-1y+171)+20=0
We get rid of parentheses
1y-171+20=0
We add all the numbers together, and all the variables
y-151=0
We move all terms containing y to the left, all other terms to the right
y=151

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