3(2r-9)=30

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


Simplifying
3(2r + -9) = 30

Reorder the terms:
3(-9 + 2r) = 30
(-9 * 3 + 2r * 3) = 30
(-27 + 6r) = 30

Solving
-27 + 6r = 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 + 6r = 30 + 27

Combine like terms: -27 + 27 = 0
0 + 6r = 30 + 27
6r = 30 + 27

Combine like terms: 30 + 27 = 57
6r = 57

Divide each side by '6'.
r = 9.5

Simplifying
r = 9.5

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