c+42=7c

Solution for c+42=7c equation:

Simplifying
c + 42 = 7c

Reorder the terms:
42 + c = 7c

Solving
42 + c = 7c

Solving for variable 'c'.

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

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

Combine like terms: c + -7c = -6c
42 + -6c = 7c + -7c

Combine like terms: 7c + -7c = 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