-9=x+2y

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Solution for -9=x+2y equation: 


Simplifying
-9 = x + 2y

Solving
-9 = x + 2y

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.
-9 + -1x = x + -1x + 2y

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

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

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

Divide each side by '-1'.
x = -9 + -2y

Simplifying
x = -9 + -2y

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