21(7-c)+12c=183

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Solution for 21(7-c)+12c=183 equation:


Simplifying
21(7 + -1c) + 12c = 183
(7 * 21 + -1c * 21) + 12c = 183
(147 + -21c) + 12c = 183

Combine like terms: -21c + 12c = -9c
147 + -9c = 183

Solving
147 + -9c = 183

Solving for variable 'c'.

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

Add '-147' to each side of the equation.
147 + -147 + -9c = 183 + -147

Combine like terms: 147 + -147 = 0
0 + -9c = 183 + -147
-9c = 183 + -147

Combine like terms: 183 + -147 = 36
-9c = 36

Divide each side by '-9'.
c = -4

Simplifying
c = -4

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