52+21r=10

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Solution for 52+21r=10 equation: 


Simplifying
52 + 21r = 10

Solving
52 + 21r = 10

Solving for variable 'r'.

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

Add '-52' to each side of the equation.
52 + -52 + 21r = 10 + -52

Combine like terms: 52 + -52 = 0
0 + 21r = 10 + -52
21r = 10 + -52

Combine like terms: 10 + -52 = -42
21r = -42

Divide each side by '21'.
r = -2

Simplifying
r = -2

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