42=5c-3

Solution for 42=5c-3 equation:

Simplifying
42 = 5c + -3

Reorder the terms:
42 = -3 + 5c

Solving
42 = -3 + 5c

Solving for variable 'c'.

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

Add '-5c' to each side of the equation.
42 + -5c = -3 + 5c + -5c

Combine like terms: 5c + -5c = 0
42 + -5c = -3 + 0
42 + -5c = -3

Add '-42' to each side of the equation.
42 + -42 + -5c = -3 + -42

Combine like terms: 42 + -42 = 0
0 + -5c = -3 + -42
-5c = -3 + -42

Combine like terms: -3 + -42 = -45
-5c = -45

Divide each side by '-5'.
c = 9

Simplifying
c = 9