-21r+27=-8

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Solution for -21r+27=-8 equation: 


Simplifying
-21r + 27 = -8

Reorder the terms:
27 + -21r = -8

Solving
27 + -21r = -8

Solving for variable 'r'.

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

Add '-27' to each side of the equation.
27 + -27 + -21r = -8 + -27

Combine like terms: 27 + -27 = 0
0 + -21r = -8 + -27
-21r = -8 + -27

Combine like terms: -8 + -27 = -35
-21r = -35

Divide each side by '-21'.
r = 1.666666667

Simplifying
r = 1.666666667

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