2r(7+5)=0

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Solution for 2r(7+5)=0 equation: 


Simplifying
2r(7 + 5) = 0

Combine like terms: 7 + 5 = 12
2r(12) = 0

Reorder the terms for easier multiplication:
2 * 12r = 0

Multiply 2 * 12
24r = 0

Solving
24r = 0

Solving for variable 'r'.

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

Divide each side by '24'.
r = 0

Simplifying
r = 0

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