20-(c-7.50)=8.90

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Solution for 20-(c-7.50)=8.90 equation: 


Simplifying
20 + -1(c + -7.50) = 8.90

Reorder the terms:
20 + -1(-7.50 + c) = 8.90
20 + (-7.50 * -1 + c * -1) = 8.90
20 + (7.5 + -1c) = 8.90

Combine like terms: 20 + 7.5 = 27.5
27.5 + -1c = 8.90

Solving
27.5 + -1c = 8.90

Solving for variable 'c'.

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

Add '-27.5' to each side of the equation.
27.5 + -27.5 + -1c = 8.90 + -27.5

Combine like terms: 27.5 + -27.5 = 0.0
0.0 + -1c = 8.90 + -27.5
-1c = 8.90 + -27.5

Combine like terms: 8.90 + -27.5 = -18.6
-1c = -18.6

Divide each side by '-1'.
c = 18.6

Simplifying
c = 18.6

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