X+2(1-x)+3(3+x)=18

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Solution for X+2(1-x)+3(3+x)=18 equation: 


Simplifying
X + 2(1 + -1x) + 3(3 + x) = 18
X + (1 * 2 + -1x * 2) + 3(3 + x) = 18
X + (2 + -2x) + 3(3 + x) = 18
X + 2 + -2x + (3 * 3 + x * 3) = 18
X + 2 + -2x + (9 + 3x) = 18

Reorder the terms:
2 + 9 + X + -2x + 3x = 18

Combine like terms: 2 + 9 = 11
11 + X + -2x + 3x = 18

Combine like terms: -2x + 3x = 1x
11 + X + 1x = 18

Solving
11 + X + 1x = 18

Solving for variable 'X'.

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

Add '-11' to each side of the equation.
11 + X + -11 + 1x = 18 + -11

Reorder the terms:
11 + -11 + X + 1x = 18 + -11

Combine like terms: 11 + -11 = 0
0 + X + 1x = 18 + -11
X + 1x = 18 + -11

Combine like terms: 18 + -11 = 7
X + 1x = 7

Add '-1x' to each side of the equation.
X + 1x + -1x = 7 + -1x

Combine like terms: 1x + -1x = 0
X + 0 = 7 + -1x
X = 7 + -1x

Simplifying
X = 7 + -1x

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