X-y-9z=-31

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Solution for X-y-9z=-31 equation:


Simplifying
X + -1y + -9z = -31

Solving
X + -1y + -9z = -31

Solving for variable 'X'.

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

Add 'y' to each side of the equation.
X + -1y + y + -9z = -31 + y

Combine like terms: -1y + y = 0
X + 0 + -9z = -31 + y
X + -9z = -31 + y

Add '9z' to each side of the equation.
X + -9z + 9z = -31 + y + 9z

Combine like terms: -9z + 9z = 0
X + 0 = -31 + y + 9z
X = -31 + y + 9z

Simplifying
X = -31 + y + 9z

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