X*x-30=y

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Solution for X*x-30=y equation: 


Simplifying
X * x + -30 = y

Multiply X * x
xX + -30 = y

Reorder the terms:
-30 + xX = y

Solving
-30 + xX = y

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + xX = 30 + y

Combine like terms: -30 + 30 = 0
0 + xX = 30 + y
xX = 30 + y

Divide each side by 'X'.
x = 30X-1 + yX-1

Simplifying
x = 30X-1 + yX-1

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