9x-y=18

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Solution for 9x-y=18 equation: 


Simplifying
9x + -1y = 18

Solving
9x + -1y = 18

Solving for variable 'x'.

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

Add 'y' to each side of the equation.
9x + -1y + y = 18 + y

Combine like terms: -1y + y = 0
9x + 0 = 18 + y
9x = 18 + y

Divide each side by '9'.
x = 2 + 0.1111111111y

Simplifying
x = 2 + 0.1111111111y

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