-r=93-4r

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Solution for -r=93-4r equation: 


Simplifying
-1r = 93 + -4r

Solving
-1r = 93 + -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
-1r + 4r = 93 + -4r + 4r

Combine like terms: -1r + 4r = 3r
3r = 93 + -4r + 4r

Combine like terms: -4r + 4r = 0
3r = 93 + 0
3r = 93

Divide each side by '3'.
r = 31

Simplifying
r = 31

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