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

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


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

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

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

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

Solving
-3 + X + 3x = 18 + x

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 + 3x = 18 + 3 + x

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

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

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

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

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

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

Simplifying
X = 21 + -2x

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