42=34+n

Solution for 42=34+n equation:

Simplifying
42 = 34 + n

Solving
42 = 34 + 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.
42 + -1n = 34 + n + -1n

Combine like terms: n + -1n = 0
42 + -1n = 34 + 0
42 + -1n = 34

Add '-42' to each side of the equation.
42 + -42 + -1n = 34 + -42

Combine like terms: 42 + -42 = 0
0 + -1n = 34 + -42
-1n = 34 + -42

Combine like terms: 34 + -42 = -8
-1n = -8

Divide each side by '-1'.
n = 8

Simplifying
n = 8