15+c+5=7

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Solution for 15+c+5=7 equation:


Simplifying
15 + c + 5 = 7

Reorder the terms:
15 + 5 + c = 7

Combine like terms: 15 + 5 = 20
20 + c = 7

Solving
20 + c = 7

Solving for variable 'c'.

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

Add '-20' to each side of the equation.
20 + -20 + c = 7 + -20

Combine like terms: 20 + -20 = 0
0 + c = 7 + -20
c = 7 + -20

Combine like terms: 7 + -20 = -13
c = -13

Simplifying
c = -13

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