3x+z=-9

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Solution for 3x+z=-9 equation: 


Simplifying
3x + z = -9

Solving
3x + z = -9

Solving for variable 'x'.

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

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

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

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

Simplifying
x = -3 + -0.3333333333z

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