-21r+28=-18

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Solution for -21r+28=-18 equation: 


Simplifying
-21r + 28 = -18

Reorder the terms:
28 + -21r = -18

Solving
28 + -21r = -18

Solving for variable 'r'.

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

Add '-28' to each side of the equation.
28 + -28 + -21r = -18 + -28

Combine like terms: 28 + -28 = 0
0 + -21r = -18 + -28
-21r = -18 + -28

Combine like terms: -18 + -28 = -46
-21r = -46

Divide each side by '-21'.
r = 2.19047619

Simplifying
r = 2.19047619

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