8c-40-3=15

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Solution for 8c-40-3=15 equation: 


Simplifying
8c + -40 + -3 = 15

Reorder the terms:
-40 + -3 + 8c = 15

Combine like terms: -40 + -3 = -43
-43 + 8c = 15

Solving
-43 + 8c = 15

Solving for variable 'c'.

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

Add '43' to each side of the equation.
-43 + 43 + 8c = 15 + 43

Combine like terms: -43 + 43 = 0
0 + 8c = 15 + 43
8c = 15 + 43

Combine like terms: 15 + 43 = 58
8c = 58

Divide each side by '8'.
c = 7.25

Simplifying
c = 7.25

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