.4c+.8c-6=c+7

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Solution for .4c+.8c-6=c+7 equation:


Simplifying
0.4c + 0.8c + -6 = c + 7

Reorder the terms:
-6 + 0.4c + 0.8c = c + 7

Combine like terms: 0.4c + 0.8c = 1.2c
-6 + 1.2c = c + 7

Reorder the terms:
-6 + 1.2c = 7 + c

Solving
-6 + 1.2c = 7 + c

Solving for variable 'c'.

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

Add '-1c' to each side of the equation.
-6 + 1.2c + -1c = 7 + c + -1c

Combine like terms: 1.2c + -1c = 0.2c
-6 + 0.2c = 7 + c + -1c

Combine like terms: c + -1c = 0
-6 + 0.2c = 7 + 0
-6 + 0.2c = 7

Add '6' to each side of the equation.
-6 + 6 + 0.2c = 7 + 6

Combine like terms: -6 + 6 = 0
0 + 0.2c = 7 + 6
0.2c = 7 + 6

Combine like terms: 7 + 6 = 13
0.2c = 13

Divide each side by '0.2'.
c = 65

Simplifying
c = 65

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