21r-18=-35

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Solution for 21r-18=-35 equation: 


Simplifying
21r + -18 = -35

Reorder the terms:
-18 + 21r = -35

Solving
-18 + 21r = -35

Solving for variable 'r'.

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

Add '18' to each side of the equation.
-18 + 18 + 21r = -35 + 18

Combine like terms: -18 + 18 = 0
0 + 21r = -35 + 18
21r = -35 + 18

Combine like terms: -35 + 18 = -17
21r = -17

Divide each side by '21'.
r = -0.8095238095

Simplifying
r = -0.8095238095

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