(X-37)+(x-42)=x

Solution for (X-37)+(x-42)=x equation:

Simplifying
(X + -37) + (x + -42) = x

Reorder the terms:
(-37 + X) + (x + -42) = x

Remove parenthesis around (-37 + X)
-37 + X + (x + -42) = x

Reorder the terms:
-37 + X + (-42 + x) = x

Remove parenthesis around (-42 + x)
-37 + X + -42 + x = x

Reorder the terms:
-37 + -42 + X + x = x

Combine like terms: -37 + -42 = -79
-79 + X + x = x

Add '-1x' to each side of the equation.
-79 + X + x + -1x = x + -1x

Combine like terms: x + -1x = 0
-79 + X + 0 = x + -1x
-79 + X = x + -1x

Combine like terms: x + -1x = 0
-79 + X = 0

Solving
-79 + X = 0

Solving for variable 'X'.

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

Add '79' to each side of the equation.
-79 + 79 + X = 0 + 79

Combine like terms: -79 + 79 = 0
0 + X = 0 + 79
X = 0 + 79

Combine like terms: 0 + 79 = 79
X = 79

Simplifying
X = 79