2x+-1y+-1y+x=-13

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Solution for 2x+-1y+-1y+x=-13 equation: 


Simplifying
2x + -1y + -1y + x = -13

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

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

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

Solving
3x + -2y = -13

Solving for variable 'x'.

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

Add '2y' to each side of the equation.
3x + -2y + 2y = -13 + 2y

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

Divide each side by '3'.
x = -4.333333333 + 0.6666666667y

Simplifying
x = -4.333333333 + 0.6666666667y

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