X+(x+1)+(x+2)=y

Solution for X+(x+1)+(x+2)=y equation:

Simplifying
X + (x + 1) + (x + 2) = y

Reorder the terms:
X + (1 + x) + (x + 2) = y

Remove parenthesis around (1 + x)
X + 1 + x + (x + 2) = y

Reorder the terms:
X + 1 + x + (2 + x) = y

Remove parenthesis around (2 + x)
X + 1 + x + 2 + x = y

Reorder the terms:
1 + 2 + X + x + x = y

Combine like terms: 1 + 2 = 3
3 + X + x + x = y

Combine like terms: x + x = 2x
3 + X + 2x = y

Solving
3 + X + 2x = y

Solving for variable 'X'.

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

Add '-3' to each side of the equation.
3 + X + -3 + 2x = -3 + y

Reorder the terms:
3 + -3 + X + 2x = -3 + y

Combine like terms: 3 + -3 = 0
0 + X + 2x = -3 + y
X + 2x = -3 + y

Add '-2x' to each side of the equation.
X + 2x + -2x = -3 + -2x + y

Combine like terms: 2x + -2x = 0
X + 0 = -3 + -2x + y
X = -3 + -2x + y

Simplifying
X = -3 + -2x + y