x-9y-z=a

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Solution for x-9y-z=a equation:


Simplifying
x + -9y + -1z = a

Solving
x + -9y + -1z = a

Solving for variable 'x'.

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

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

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

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

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

Simplifying
x = a + 9y + z

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