7c+9=11c-31

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Solution for 7c+9=11c-31 equation:


Simplifying
7c + 9 = 11c + -31

Reorder the terms:
9 + 7c = 11c + -31

Reorder the terms:
9 + 7c = -31 + 11c

Solving
9 + 7c = -31 + 11c

Solving for variable 'c'.

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

Add '-11c' to each side of the equation.
9 + 7c + -11c = -31 + 11c + -11c

Combine like terms: 7c + -11c = -4c
9 + -4c = -31 + 11c + -11c

Combine like terms: 11c + -11c = 0
9 + -4c = -31 + 0
9 + -4c = -31

Add '-9' to each side of the equation.
9 + -9 + -4c = -31 + -9

Combine like terms: 9 + -9 = 0
0 + -4c = -31 + -9
-4c = -31 + -9

Combine like terms: -31 + -9 = -40
-4c = -40

Divide each side by '-4'.
c = 10

Simplifying
c = 10

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