100=c+42

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Solution for 100=c+42 equation:


Simplifying
100 = c + 42

Reorder the terms:
100 = 42 + c

Solving
100 = 42 + 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.
100 + -1c = 42 + c + -1c

Combine like terms: c + -1c = 0
100 + -1c = 42 + 0
100 + -1c = 42

Add '-100' to each side of the equation.
100 + -100 + -1c = 42 + -100

Combine like terms: 100 + -100 = 0
0 + -1c = 42 + -100
-1c = 42 + -100

Combine like terms: 42 + -100 = -58
-1c = -58

Divide each side by '-1'.
c = 58

Simplifying
c = 58

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