X+(x+9)+(x-4)=42

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Solution for X+(x+9)+(x-4)=42 equation:


Simplifying
X + (x + 9) + (x + -4) = 42

Reorder the terms:
X + (9 + x) + (x + -4) = 42

Remove parenthesis around (9 + x)
X + 9 + x + (x + -4) = 42

Reorder the terms:
X + 9 + x + (-4 + x) = 42

Remove parenthesis around (-4 + x)
X + 9 + x + -4 + x = 42

Reorder the terms:
9 + -4 + X + x + x = 42

Combine like terms: 9 + -4 = 5
5 + X + x + x = 42

Combine like terms: x + x = 2x
5 + X + 2x = 42

Solving
5 + X + 2x = 42

Solving for variable 'X'.

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

Add '-5' to each side of the equation.
5 + X + -5 + 2x = 42 + -5

Reorder the terms:
5 + -5 + X + 2x = 42 + -5

Combine like terms: 5 + -5 = 0
0 + X + 2x = 42 + -5
X + 2x = 42 + -5

Combine like terms: 42 + -5 = 37
X + 2x = 37

Add '-2x' to each side of the equation.
X + 2x + -2x = 37 + -2x

Combine like terms: 2x + -2x = 0
X + 0 = 37 + -2x
X = 37 + -2x

Simplifying
X = 37 + -2x

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