xy-z=40

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Solution for xy-z=40 equation: 


Simplifying
xy + -1z = 40

Solving
xy + -1z = 40

Solving for variable 'x'.

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

Add 'z' to each side of the equation.
xy + -1z + z = 40 + z

Combine like terms: -1z + z = 0
xy + 0 = 40 + z
xy = 40 + z

Divide each side by 'y'.
x = 40y-1 + y-1z

Simplifying
x = 40y-1 + y-1z

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