9(80-c)+6c=675

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Solution for 9(80-c)+6c=675 equation:


Simplifying
9(80 + -1c) + 6c = 675
(80 * 9 + -1c * 9) + 6c = 675
(720 + -9c) + 6c = 675

Combine like terms: -9c + 6c = -3c
720 + -3c = 675

Solving
720 + -3c = 675

Solving for variable 'c'.

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

Add '-720' to each side of the equation.
720 + -720 + -3c = 675 + -720

Combine like terms: 720 + -720 = 0
0 + -3c = 675 + -720
-3c = 675 + -720

Combine like terms: 675 + -720 = -45
-3c = -45

Divide each side by '-3'.
c = 15

Simplifying
c = 15

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