0=x+3y+9

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Solution for 0=x+3y+9 equation: 


Simplifying
0 = x + 3y + 9

Reorder the terms:
0 = 9 + x + 3y

Solving
0 = 9 + x + 3y

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 = 9 + x + -1x + 3y
Remove the zero:
-1x = 9 + x + -1x + 3y

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

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

Simplifying
x = -9 + -3y

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