c+15=6c-20

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Solution for c+15=6c-20 equation:


Simplifying
c + 15 = 6c + -20

Reorder the terms:
15 + c = 6c + -20

Reorder the terms:
15 + c = -20 + 6c

Solving
15 + c = -20 + 6c

Solving for variable 'c'.

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

Add '-6c' to each side of the equation.
15 + c + -6c = -20 + 6c + -6c

Combine like terms: c + -6c = -5c
15 + -5c = -20 + 6c + -6c

Combine like terms: 6c + -6c = 0
15 + -5c = -20 + 0
15 + -5c = -20

Add '-15' to each side of the equation.
15 + -15 + -5c = -20 + -15

Combine like terms: 15 + -15 = 0
0 + -5c = -20 + -15
-5c = -20 + -15

Combine like terms: -20 + -15 = -35
-5c = -35

Divide each side by '-5'.
c = 7

Simplifying
c = 7

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