3r(-4-8)=

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Solution for 3r(-4-8)= equation: 


Simplifying
3r(-4 + -8) = 0

Combine like terms: -4 + -8 = -12
3r(-12) = 0

Reorder the terms for easier multiplication:
3 * -12r = 0

Multiply 3 * -12
-36r = 0

Solving
-36r = 0

Solving for variable 'r'.

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

Divide each side by '-36'.
r = 0

Simplifying
r = 0

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