2x+5y+7x-y=

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Solution for 2x+5y+7x-y= equation:


Simplifying
2x + 5y + 7x + -1y = 0

Reorder the terms:
2x + 7x + 5y + -1y = 0

Combine like terms: 2x + 7x = 9x
9x + 5y + -1y = 0

Combine like terms: 5y + -1y = 4y
9x + 4y = 0

Solving
9x + 4y = 0

Solving for variable 'x'.

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

Add '-4y' to each side of the equation.
9x + 4y + -4y = 0 + -4y

Combine like terms: 4y + -4y = 0
9x + 0 = 0 + -4y
9x = 0 + -4y
Remove the zero:
9x = -4y

Divide each side by '9'.
x = -0.4444444444y

Simplifying
x = -0.4444444444y

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