-9(3+2r)=30

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Solution for -9(3+2r)=30 equation: 


Simplifying
-9(3 + 2r) = 30
(3 * -9 + 2r * -9) = 30
(-27 + -18r) = 30

Solving
-27 + -18r = 30

Solving for variable 'r'.

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

Add '27' to each side of the equation.
-27 + 27 + -18r = 30 + 27

Combine like terms: -27 + 27 = 0
0 + -18r = 30 + 27
-18r = 30 + 27

Combine like terms: 30 + 27 = 57
-18r = 57

Divide each side by '-18'.
r = -3.166666667

Simplifying
r = -3.166666667

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