X+(x+1)+(x+2)=12

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Solution for X+(x+1)+(x+2)=12 equation:


Simplifying
X + (x + 1) + (x + 2) = 12

Reorder the terms:
X + (1 + x) + (x + 2) = 12

Remove parenthesis around (1 + x)
X + 1 + x + (x + 2) = 12

Reorder the terms:
X + 1 + x + (2 + x) = 12

Remove parenthesis around (2 + x)
X + 1 + x + 2 + x = 12

Reorder the terms:
1 + 2 + X + x + x = 12

Combine like terms: 1 + 2 = 3
3 + X + x + x = 12

Combine like terms: x + x = 2x
3 + X + 2x = 12

Solving
3 + X + 2x = 12

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 = 12 + -3

Reorder the terms:
3 + -3 + X + 2x = 12 + -3

Combine like terms: 3 + -3 = 0
0 + X + 2x = 12 + -3
X + 2x = 12 + -3

Combine like terms: 12 + -3 = 9
X + 2x = 9

Add '-2x' to each side of the equation.
X + 2x + -2x = 9 + -2x

Combine like terms: 2x + -2x = 0
X + 0 = 9 + -2x
X = 9 + -2x

Simplifying
X = 9 + -2x

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