10.9=7c-8

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Solution for 10.9=7c-8 equation:


Simplifying
10.9 = 7c + -8

Reorder the terms:
10.9 = -8 + 7c

Solving
10.9 = -8 + 7c

Solving for variable 'c'.

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

Add '-7c' to each side of the equation.
10.9 + -7c = -8 + 7c + -7c

Combine like terms: 7c + -7c = 0
10.9 + -7c = -8 + 0
10.9 + -7c = -8

Add '-10.9' to each side of the equation.
10.9 + -10.9 + -7c = -8 + -10.9

Combine like terms: 10.9 + -10.9 = 0.0
0.0 + -7c = -8 + -10.9
-7c = -8 + -10.9

Combine like terms: -8 + -10.9 = -18.9
-7c = -18.9

Divide each side by '-7'.
c = 2.7

Simplifying
c = 2.7

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