7c-2c-1=19

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Solution for 7c-2c-1=19 equation: 


Simplifying
7c + -2c + -1 = 19

Reorder the terms:
-1 + 7c + -2c = 19

Combine like terms: 7c + -2c = 5c
-1 + 5c = 19

Solving
-1 + 5c = 19

Solving for variable 'c'.

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

Add '1' to each side of the equation.
-1 + 1 + 5c = 19 + 1

Combine like terms: -1 + 1 = 0
0 + 5c = 19 + 1
5c = 19 + 1

Combine like terms: 19 + 1 = 20
5c = 20

Divide each side by '5'.
c = 4

Simplifying
c = 4

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