X+x+18=x+19+x+11+x+9

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Solution for X+x+18=x+19+x+11+x+9 equation:


Simplifying
X + x + 18 = x + 19 + x + 11 + x + 9

Reorder the terms:
18 + X + x = x + 19 + x + 11 + x + 9

Reorder the terms:
18 + X + x = 19 + 11 + 9 + x + x + x

Combine like terms: 19 + 11 = 30
18 + X + x = 30 + 9 + x + x + x

Combine like terms: 30 + 9 = 39
18 + X + x = 39 + x + x + x

Combine like terms: x + x = 2x
18 + X + x = 39 + 2x + x

Combine like terms: 2x + x = 3x
18 + X + x = 39 + 3x

Solving
18 + X + x = 39 + 3x

Solving for variable 'X'.

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

Add '-18' to each side of the equation.
18 + X + -18 + x = 39 + -18 + 3x

Reorder the terms:
18 + -18 + X + x = 39 + -18 + 3x

Combine like terms: 18 + -18 = 0
0 + X + x = 39 + -18 + 3x
X + x = 39 + -18 + 3x

Combine like terms: 39 + -18 = 21
X + x = 21 + 3x

Add '-1x' to each side of the equation.
X + x + -1x = 21 + 3x + -1x

Combine like terms: x + -1x = 0
X + 0 = 21 + 3x + -1x
X = 21 + 3x + -1x

Combine like terms: 3x + -1x = 2x
X = 21 + 2x

Simplifying
X = 21 + 2x

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