-6(3+3r)=72

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Solution for -6(3+3r)=72 equation: 


Simplifying
-6(3 + 3r) = 72
(3 * -6 + 3r * -6) = 72
(-18 + -18r) = 72

Solving
-18 + -18r = 72

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 + -18r = 72 + 18

Combine like terms: -18 + 18 = 0
0 + -18r = 72 + 18
-18r = 72 + 18

Combine like terms: 72 + 18 = 90
-18r = 90

Divide each side by '-18'.
r = -5

Simplifying
r = -5

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