X-18=3X-(1-X)

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


Simplifying
X + -18 = 3X + -1(1 + -1X)

Reorder the terms:
-18 + X = 3X + -1(1 + -1X)
-18 + X = 3X + (1 * -1 + -1X * -1)
-18 + X = 3X + (-1 + 1X)

Reorder the terms:
-18 + X = -1 + 3X + 1X

Combine like terms: 3X + 1X = 4X
-18 + X = -1 + 4X

Solving
-18 + X = -1 + 4X

Solving for variable 'X'.

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

Add '-4X' to each side of the equation.
-18 + X + -4X = -1 + 4X + -4X

Combine like terms: X + -4X = -3X
-18 + -3X = -1 + 4X + -4X

Combine like terms: 4X + -4X = 0
-18 + -3X = -1 + 0
-18 + -3X = -1

Add '18' to each side of the equation.
-18 + 18 + -3X = -1 + 18

Combine like terms: -18 + 18 = 0
0 + -3X = -1 + 18
-3X = -1 + 18

Combine like terms: -1 + 18 = 17
-3X = 17

Divide each side by '-3'.
X = -5.666666667

Simplifying
X = -5.666666667

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