=2x+7y-y-x

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


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

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

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

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

Solving
0 = 1x + 6y

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
0 + -1x = 1x + -1x + 6y
Remove the zero:
-1x = 1x + -1x + 6y

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

Divide each side by '-1'.
x = -6y

Simplifying
x = -6y

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