3y+9x+4=0

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Solution for 3y+9x+4=0 equation:


Simplifying
3y + 9x + 4 = 0

Reorder the terms:
4 + 9x + 3y = 0

Solving
4 + 9x + 3y = 0

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + 9x + -4 + 3y = 0 + -4

Reorder the terms:
4 + -4 + 9x + 3y = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 9x + 3y = 0 + -4
9x + 3y = 0 + -4

Combine like terms: 0 + -4 = -4
9x + 3y = -4

Add '-3y' to each side of the equation.
9x + 3y + -3y = -4 + -3y

Combine like terms: 3y + -3y = 0
9x + 0 = -4 + -3y
9x = -4 + -3y

Divide each side by '9'.
x = -0.4444444444 + -0.3333333333y

Simplifying
x = -0.4444444444 + -0.3333333333y

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