2b+5b-4b*2b-500=30

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Solution for 2b+5b-4b*2b-500=30 equation: 



2b+5b-4b*2b-500=30

We move all terms to the left:

2b+5b-4b*2b-500-(30)=0

We add all the numbers together, and all the variables

7b-4b*2b-530=0

Wy multiply elements

-8b^2+7b-530=0

a = -8; b = 7; c = -530;
Δ = b2-4ac
Δ = 72-4·(-8)·(-530)
Δ = -16911
Delta is less than zero, so there is no solution for the equation

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