64=9-5r

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Solution for 64=9-5r equation:


Simplifying
64 = 9 + -5r

Solving
64 = 9 + -5r

Solving for variable 'r'.

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

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

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

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

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

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

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

Simplifying
r = -11

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