X+X+X-1=-13

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Solution for X+X+X-1=-13 equation:


Simplifying
X + X + X + -1 = -13

Reorder the terms:
-1 + X + X + X = -13

Combine like terms: X + X = 2X
-1 + 2X + X = -13

Combine like terms: 2X + X = 3X
-1 + 3X = -13

Solving
-1 + 3X = -13

Solving for variable 'X'.

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

Add '1' to each side of the equation.
-1 + 1 + 3X = -13 + 1

Combine like terms: -1 + 1 = 0
0 + 3X = -13 + 1
3X = -13 + 1

Combine like terms: -13 + 1 = -12
3X = -12

Divide each side by '3'.
X = -4

Simplifying
X = -4

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