80ના 20% + 2x = 30ના 45% + 85ના 20%માં xની કિંમત શોધો.

1
\(7\frac{1}{4}\)
2
\(7\frac{3}{4}\)
3
\(7\frac{1}{2}\)
4
\(7\frac{1}{3}\)

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