13-x=2x+4

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Solution for 13-x=2x+4 equation:


Simplifying
13 + -1x = 2x + 4

Reorder the terms:
13 + -1x = 4 + 2x

Solving
13 + -1x = 4 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
13 + -1x + -2x = 4 + 2x + -2x

Combine like terms: -1x + -2x = -3x
13 + -3x = 4 + 2x + -2x

Combine like terms: 2x + -2x = 0
13 + -3x = 4 + 0
13 + -3x = 4

Add '-13' to each side of the equation.
13 + -13 + -3x = 4 + -13

Combine like terms: 13 + -13 = 0
0 + -3x = 4 + -13
-3x = 4 + -13

Combine like terms: 4 + -13 = -9
-3x = -9

Divide each side by '-3'.
x = 3

Simplifying
x = 3

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