x+2x-4=-13

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


Simplifying
x + 2x + -4 = -13

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

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

Solving
-4 + 3x = -13

Solving for variable 'x'.

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

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

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

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

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

Simplifying
x = -3

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