15=5c-15-3c

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Solution for 15=5c-15-3c equation:


Simplifying
15 = 5c + -15 + -3c

Reorder the terms:
15 = -15 + 5c + -3c

Combine like terms: 5c + -3c = 2c
15 = -15 + 2c

Solving
15 = -15 + 2c

Solving for variable 'c'.

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

Add '-2c' to each side of the equation.
15 + -2c = -15 + 2c + -2c

Combine like terms: 2c + -2c = 0
15 + -2c = -15 + 0
15 + -2c = -15

Add '-15' to each side of the equation.
15 + -15 + -2c = -15 + -15

Combine like terms: 15 + -15 = 0
0 + -2c = -15 + -15
-2c = -15 + -15

Combine like terms: -15 + -15 = -30
-2c = -30

Divide each side by '-2'.
c = 15

Simplifying
c = 15

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