rx-st=x

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Solution for rx-st=x equation: 


Simplifying
rx + -1st = x

Solving
rx + -1st = x

Solving for variable 'r'.

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

Add 'st' to each side of the equation.
rx + -1st + st = st + x

Combine like terms: -1st + st = 0
rx + 0 = st + x
rx = st + x

Divide each side by 'x'.
r = stx-1 + 1

Simplifying
r = stx-1 + 1

Reorder the terms:
r = 1 + stx-1

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