3y+(-x)=9

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Solution for 3y+(-x)=9 equation: 


Simplifying
3y + (-1x) = 9

Reorder the terms:
(-1x) + 3y = 9

Solving
(-1x) + 3y = 9

Solving for variable 'x'.

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

Add '-3y' to each side of the equation.
(-1x) + 3y + -3y = 9 + -3y

Combine like terms: 3y + -3y = 0
(-1x) + 0 = 9 + -3y
(-1x) = 9 + -3y

Divide each side by '-1'.
x = -9 + 3y

Simplifying
x = -9 + 3y

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