.5(4r+18)=

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Solution for .5(4r+18)= equation: 


Simplifying
0.5(4r + 18) = 0

Reorder the terms:
0.5(18 + 4r) = 0
(18 * 0.5 + 4r * 0.5) = 0
(9 + 2r) = 0

Solving
9 + 2r = 0

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 + 2r = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 2r = 0 + -9
2r = 0 + -9

Combine like terms: 0 + -9 = -9
2r = -9

Divide each side by '2'.
r = -4.5

Simplifying
r = -4.5

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