r-s=

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Solution for r-s= equation: 


Simplifying
r + -1s = 0

Solving
r + -1s = 0

Solving for variable 'r'.

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

Add 's' to each side of the equation.
r + -1s + s = 0 + s

Combine like terms: -1s + s = 0
r + 0 = 0 + s
r = 0 + s
Remove the zero:
r = s

Simplifying
r = s

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