3x-s=r

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Solution for 3x-s=r equation:


Simplifying
3x + -1s = r

Reorder the terms:
-1s + 3x = r

Solving
-1s + 3x = r

Solving for variable 's'.

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

Add '-3x' to each side of the equation.
-1s + 3x + -3x = r + -3x

Combine like terms: 3x + -3x = 0
-1s + 0 = r + -3x
-1s = r + -3x

Divide each side by '-1'.
s = -1r + 3x

Simplifying
s = -1r + 3x

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