77=7(c-79)

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Solution for 77=7(c-79) equation:


Simplifying
77 = 7(c + -79)

Reorder the terms:
77 = 7(-79 + c)
77 = (-79 * 7 + c * 7)
77 = (-553 + 7c)

Solving
77 = -553 + 7c

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Add '-7c' to each side of the equation.
77 + -7c = -553 + 7c + -7c

Combine like terms: 7c + -7c = 0
77 + -7c = -553 + 0
77 + -7c = -553

Add '-77' to each side of the equation.
77 + -77 + -7c = -553 + -77

Combine like terms: 77 + -77 = 0
0 + -7c = -553 + -77
-7c = -553 + -77

Combine like terms: -553 + -77 = -630
-7c = -630

Divide each side by '-7'.
c = 90

Simplifying
c = 90

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