42-5=n

Solution for 42-5=n equation:

Simplifying
42 + -5 = n

Combine like terms: 42 + -5 = 37
37 = n

Solving
37 = n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
37 + -1n = n + -1n

Combine like terms: n + -1n = 0
37 + -1n = 0

Add '-37' to each side of the equation.
37 + -37 + -1n = 0 + -37

Combine like terms: 37 + -37 = 0
0 + -1n = 0 + -37
-1n = 0 + -37

Combine like terms: 0 + -37 = -37
-1n = -37

Divide each side by '-1'.
n = 37

Simplifying
n = 37