7c-2c-2=18

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Solution for 7c-2c-2=18 equation: 


Simplifying
7c + -2c + -2 = 18

Reorder the terms:
-2 + 7c + -2c = 18

Combine like terms: 7c + -2c = 5c
-2 + 5c = 18

Solving
-2 + 5c = 18

Solving for variable 'c'.

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

Add '2' to each side of the equation.
-2 + 2 + 5c = 18 + 2

Combine like terms: -2 + 2 = 0
0 + 5c = 18 + 2
5c = 18 + 2

Combine like terms: 18 + 2 = 20
5c = 20

Divide each side by '5'.
c = 4

Simplifying
c = 4

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