20.4-2c=5

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Solution for 20.4-2c=5 equation: 


Simplifying
20.4 + -2c = 5

Solving
20.4 + -2c = 5

Solving for variable 'c'.

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

Add '-20.4' to each side of the equation.
20.4 + -20.4 + -2c = 5 + -20.4

Combine like terms: 20.4 + -20.4 = 0.0
0.0 + -2c = 5 + -20.4
-2c = 5 + -20.4

Combine like terms: 5 + -20.4 = -15.4
-2c = -15.4

Divide each side by '-2'.
c = 7.7

Simplifying
c = 7.7

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