15=3c-7c

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Solution for 15=3c-7c equation:


Simplifying
15 = 3c + -7c

Combine like terms: 3c + -7c = -4c
15 = -4c

Solving
15 = -4c

Solving for variable 'c'.

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

Add '4c' to each side of the equation.
15 + 4c = -4c + 4c

Combine like terms: -4c + 4c = 0
15 + 4c = 0

Add '-15' to each side of the equation.
15 + -15 + 4c = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 4c = 0 + -15
4c = 0 + -15

Combine like terms: 0 + -15 = -15
4c = -15

Divide each side by '4'.
c = -3.75

Simplifying
c = -3.75

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