2(2r-5)=9

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Solution for 2(2r-5)=9 equation: 


Simplifying
2(2r + -5) = 9

Reorder the terms:
2(-5 + 2r) = 9
(-5 * 2 + 2r * 2) = 9
(-10 + 4r) = 9

Solving
-10 + 4r = 9

Solving for variable 'r'.

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

Add '10' to each side of the equation.
-10 + 10 + 4r = 9 + 10

Combine like terms: -10 + 10 = 0
0 + 4r = 9 + 10
4r = 9 + 10

Combine like terms: 9 + 10 = 19
4r = 19

Divide each side by '4'.
r = 4.75

Simplifying
r = 4.75

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