30+3(2^2-1)/2*5-7

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Solution for 30+3(2^2-1)/2*5-7 equation: 


5*((3*(2^2-1))/2)-7+30 = 0

5*((3*(4-1))/2)-7+30 = 0

5*((3*3)/2)-7+30 = 0

5*(9/2)-7+30 = 0

9/2*5-7+30 = 0

45/2-7+30 = 0

31/2+30 = 0

91/2 = 0

L <> R

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