9r-4=113

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Solution for 9r-4=113 equation: 


Simplifying
9r + -4 = 113

Reorder the terms:
-4 + 9r = 113

Solving
-4 + 9r = 113

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + 9r = 113 + 4

Combine like terms: -4 + 4 = 0
0 + 9r = 113 + 4
9r = 113 + 4

Combine like terms: 113 + 4 = 117
9r = 117

Divide each side by '9'.
r = 13

Simplifying
r = 13

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