व्यंजक 80 का 20% + 2x = 30 का 45% + 85 का 20% में x का मान ज्ञात कीजिए।

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

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