777=21(f-915)

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Solution for 777=21(f-915) equation:



777=21(f-915)
We move all terms to the left:
777-(21(f-915))=0
We calculate terms in parentheses: -(21(f-915)), so:
21(f-915)
We multiply parentheses
21f-19215
Back to the equation:
-(21f-19215)
We get rid of parentheses
-21f+19215+777=0
We add all the numbers together, and all the variables
-21f+19992=0
We move all terms containing f to the left, all other terms to the right
-21f=-19992
f=-19992/-21
f=+952

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