2x-y-9=O

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Solution for 2x-y-9=O equation:


Simplifying
2x + -1y + -9 = O

Reorder the terms:
-9 + 2x + -1y = O

Solving
-9 + 2x + -1y = O

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 2x + 9 + -1y = 9 + O

Reorder the terms:
-9 + 9 + 2x + -1y = 9 + O

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

Add 'y' to each side of the equation.
2x + -1y + y = 9 + O + y

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

Divide each side by '2'.
x = 4.5 + 0.5O + 0.5y

Simplifying
x = 4.5 + 0.5O + 0.5y

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