31-4r=27

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Solution for 31-4r=27 equation: 


Simplifying
31 + -4r = 27

Solving
31 + -4r = 27

Solving for variable 'r'.

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

Add '-31' to each side of the equation.
31 + -31 + -4r = 27 + -31

Combine like terms: 31 + -31 = 0
0 + -4r = 27 + -31
-4r = 27 + -31

Combine like terms: 27 + -31 = -4
-4r = -4

Divide each side by '-4'.
r = 1

Simplifying
r = 1

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