9r+20=101

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Solution for 9r+20=101 equation: 


Simplifying
9r + 20 = 101

Reorder the terms:
20 + 9r = 101

Solving
20 + 9r = 101

Solving for variable 'r'.

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

Add '-20' to each side of the equation.
20 + -20 + 9r = 101 + -20

Combine like terms: 20 + -20 = 0
0 + 9r = 101 + -20
9r = 101 + -20

Combine like terms: 101 + -20 = 81
9r = 81

Divide each side by '9'.
r = 9

Simplifying
r = 9

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