X+x+6=42

Solution for X+x+6=42 equation:

Simplifying
X + x + 6 = 42

Reorder the terms:
6 + X + x = 42

Solving
6 + X + x = 42

Solving for variable 'X'.

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

Add '-6' to each side of the equation.
6 + X + -6 + x = 42 + -6

Reorder the terms:
6 + -6 + X + x = 42 + -6

Combine like terms: 6 + -6 = 0
0 + X + x = 42 + -6
X + x = 42 + -6

Combine like terms: 42 + -6 = 36
X + x = 36

Add '-1x' to each side of the equation.
X + x + -1x = 36 + -1x

Combine like terms: x + -1x = 0
X + 0 = 36 + -1x
X = 36 + -1x

Simplifying
X = 36 + -1x