18-c=11

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Solution for 18-c=11 equation: 


Simplifying
18 + -1c = 11

Solving
18 + -1c = 11

Solving for variable 'c'.

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

Add '-18' to each side of the equation.
18 + -18 + -1c = 11 + -18

Combine like terms: 18 + -18 = 0
0 + -1c = 11 + -18
-1c = 11 + -18

Combine like terms: 11 + -18 = -7
-1c = -7

Divide each side by '-1'.
c = 7

Simplifying
c = 7

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