x-4=3x-18

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Solution for x-4=3x-18 equation:


Simplifying
x + -4 = 3x + -18

Reorder the terms:
-4 + x = 3x + -18

Reorder the terms:
-4 + x = -18 + 3x

Solving
-4 + x = -18 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-4 + x + -3x = -18 + 3x + -3x

Combine like terms: x + -3x = -2x
-4 + -2x = -18 + 3x + -3x

Combine like terms: 3x + -3x = 0
-4 + -2x = -18 + 0
-4 + -2x = -18

Add '4' to each side of the equation.
-4 + 4 + -2x = -18 + 4

Combine like terms: -4 + 4 = 0
0 + -2x = -18 + 4
-2x = -18 + 4

Combine like terms: -18 + 4 = -14
-2x = -14

Divide each side by '-2'.
x = 7

Simplifying
x = 7

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