-2(r+9)=-29

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Solution for -2(r+9)=-29 equation: 


Simplifying
-2(r + 9) = -29

Reorder the terms:
-2(9 + r) = -29
(9 * -2 + r * -2) = -29
(-18 + -2r) = -29

Solving
-18 + -2r = -29

Solving for variable 'r'.

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

Add '18' to each side of the equation.
-18 + 18 + -2r = -29 + 18

Combine like terms: -18 + 18 = 0
0 + -2r = -29 + 18
-2r = -29 + 18

Combine like terms: -29 + 18 = -11
-2r = -11

Divide each side by '-2'.
r = 5.5

Simplifying
r = 5.5

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