7*(C-2)-C=40

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Solution for 7*(C-2)-C=40 equation:


Simplifying
7(C + -2) + -1C = 40

Reorder the terms:
7(-2 + C) + -1C = 40
(-2 * 7 + C * 7) + -1C = 40
(-14 + 7C) + -1C = 40

Combine like terms: 7C + -1C = 6C
-14 + 6C = 40

Solving
-14 + 6C = 40

Solving for variable 'C'.

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

Add '14' to each side of the equation.
-14 + 14 + 6C = 40 + 14

Combine like terms: -14 + 14 = 0
0 + 6C = 40 + 14
6C = 40 + 14

Combine like terms: 40 + 14 = 54
6C = 54

Divide each side by '6'.
C = 9

Simplifying
C = 9

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