x*Y-9=31

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Solution for x*Y-9=31 equation: 


Simplifying
x * Y + -9 = 31

Multiply x * Y
xY + -9 = 31

Reorder the terms:
-9 + xY = 31

Solving
-9 + xY = 31

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + xY = 31 + 9

Combine like terms: -9 + 9 = 0
0 + xY = 31 + 9
xY = 31 + 9

Combine like terms: 31 + 9 = 40
xY = 40

Divide each side by 'Y'.
x = 40Y-1

Simplifying
x = 40Y-1

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