3x+y+9=0

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


Simplifying
3x + y + 9 = 0

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

Solving
9 + 3x + y = 0

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 + 3x + -9 + y = 0 + -9

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

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

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

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

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

Divide each side by '3'.
x = -3 + -0.3333333333y

Simplifying
x = -3 + -0.3333333333y

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