-21=-7(y-97)

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Solution for -21=-7(y-97) equation:



-21=-7(y-97)
We move all terms to the left:
-21-(-7(y-97))=0
We calculate terms in parentheses: -(-7(y-97)), so:
-7(y-97)
We multiply parentheses
-7y+679
Back to the equation:
-(-7y+679)
We get rid of parentheses
7y-679-21=0
We add all the numbers together, and all the variables
7y-700=0
We move all terms containing y to the left, all other terms to the right
7y=700
y=700/7
y=100

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