42=c-72

Solution for 42=c-72 equation:

Simplifying
42 = c + -72

Reorder the terms:
42 = -72 + c

Solving
42 = -72 + 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.
42 + -1c = -72 + c + -1c

Combine like terms: c + -1c = 0
42 + -1c = -72 + 0
42 + -1c = -72

Add '-42' to each side of the equation.
42 + -42 + -1c = -72 + -42

Combine like terms: 42 + -42 = 0
0 + -1c = -72 + -42
-1c = -72 + -42

Combine like terms: -72 + -42 = -114
-1c = -114

Divide each side by '-1'.
c = 114

Simplifying
c = 114