X+y-z=9

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Solution for X+y-z=9 equation:


Simplifying
X + y + -1z = 9

Solving
X + y + -1z = 9

Solving for variable 'X'.

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

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

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

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

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

Simplifying
X = 9 + -1y + z

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