-5(4-9r)=

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Solution for -5(4-9r)= equation: 


Simplifying
-5(4 + -9r) = 0
(4 * -5 + -9r * -5) = 0
(-20 + 45r) = 0

Solving
-20 + 45r = 0

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 + 45r = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 45r = 0 + 20
45r = 0 + 20

Combine like terms: 0 + 20 = 20
45r = 20

Divide each side by '45'.
r = 0.4444444444

Simplifying
r = 0.4444444444

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