3c+5=7c-7

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Solution for 3c+5=7c-7 equation:


Simplifying
3c + 5 = 7c + -7

Reorder the terms:
5 + 3c = 7c + -7

Reorder the terms:
5 + 3c = -7 + 7c

Solving
5 + 3c = -7 + 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.
5 + 3c + -7c = -7 + 7c + -7c

Combine like terms: 3c + -7c = -4c
5 + -4c = -7 + 7c + -7c

Combine like terms: 7c + -7c = 0
5 + -4c = -7 + 0
5 + -4c = -7

Add '-5' to each side of the equation.
5 + -5 + -4c = -7 + -5

Combine like terms: 5 + -5 = 0
0 + -4c = -7 + -5
-4c = -7 + -5

Combine like terms: -7 + -5 = -12
-4c = -12

Divide each side by '-4'.
c = 3

Simplifying
c = 3

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