9c+11=10c-9

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Solution for 9c+11=10c-9 equation:


Simplifying
9c + 11 = 10c + -9

Reorder the terms:
11 + 9c = 10c + -9

Reorder the terms:
11 + 9c = -9 + 10c

Solving
11 + 9c = -9 + 10c

Solving for variable 'c'.

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

Add '-10c' to each side of the equation.
11 + 9c + -10c = -9 + 10c + -10c

Combine like terms: 9c + -10c = -1c
11 + -1c = -9 + 10c + -10c

Combine like terms: 10c + -10c = 0
11 + -1c = -9 + 0
11 + -1c = -9

Add '-11' to each side of the equation.
11 + -11 + -1c = -9 + -11

Combine like terms: 11 + -11 = 0
0 + -1c = -9 + -11
-1c = -9 + -11

Combine like terms: -9 + -11 = -20
-1c = -20

Divide each side by '-1'.
c = 20

Simplifying
c = 20

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