-9c+42=-15c

Solution for -9c+42=-15c equation:

Simplifying
-9c + 42 = -15c

Reorder the terms:
42 + -9c = -15c

Solving
42 + -9c = -15c

Solving for variable 'c'.

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

Add '15c' to each side of the equation.
42 + -9c + 15c = -15c + 15c

Combine like terms: -9c + 15c = 6c
42 + 6c = -15c + 15c

Combine like terms: -15c + 15c = 0
42 + 6c = 0

Add '-42' to each side of the equation.
42 + -42 + 6c = 0 + -42

Combine like terms: 42 + -42 = 0
0 + 6c = 0 + -42
6c = 0 + -42

Combine like terms: 0 + -42 = -42
6c = -42

Divide each side by '6'.
c = -7

Simplifying
c = -7