3x-y+7y-x=

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Solution for 3x-y+7y-x= equation:


Simplifying
3x + -1y + 7y + -1x = 0

Reorder the terms:
3x + -1x + -1y + 7y = 0

Combine like terms: 3x + -1x = 2x
2x + -1y + 7y = 0

Combine like terms: -1y + 7y = 6y
2x + 6y = 0

Solving
2x + 6y = 0

Solving for variable 'x'.

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

Add '-6y' to each side of the equation.
2x + 6y + -6y = 0 + -6y

Combine like terms: 6y + -6y = 0
2x + 0 = 0 + -6y
2x = 0 + -6y
Remove the zero:
2x = -6y

Divide each side by '2'.
x = -3y

Simplifying
x = -3y

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