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प्रश्न
Find x and m: `("m" + 9)/(3"m" + 15) = 5/3`
उत्तर
Cross multiplying, we get
∴ (m + 9) × 3 = 5 × (3m + 15)
m × 3 + 9 × 3 = 5 × 3m + 5 × 15
Transposing 3m and 75, we get
27 – 75 = 15m – 3m
– 48 = 12m
`(12"m")/12 = (-48)/12`
⇒ m = – 4
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