9-5r=64

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Solution for 9-5r=64 equation: 


Simplifying
9 + -5r = 64

Solving
9 + -5r = 64

Solving for variable 'r'.

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

Add '-9' to each side of the equation.
9 + -9 + -5r = 64 + -9

Combine like terms: 9 + -9 = 0
0 + -5r = 64 + -9
-5r = 64 + -9

Combine like terms: 64 + -9 = 55
-5r = 55

Divide each side by '-5'.
r = -11

Simplifying
r = -11

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