15=12c-90

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Solution for 15=12c-90 equation:


Simplifying
15 = 12c + -90

Reorder the terms:
15 = -90 + 12c

Solving
15 = -90 + 12c

Solving for variable 'c'.

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

Add '-12c' to each side of the equation.
15 + -12c = -90 + 12c + -12c

Combine like terms: 12c + -12c = 0
15 + -12c = -90 + 0
15 + -12c = -90

Add '-15' to each side of the equation.
15 + -15 + -12c = -90 + -15

Combine like terms: 15 + -15 = 0
0 + -12c = -90 + -15
-12c = -90 + -15

Combine like terms: -90 + -15 = -105
-12c = -105

Divide each side by '-12'.
c = 8.75

Simplifying
c = 8.75

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