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Solve :z/(z + 15) = 4/9 |
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Answer» z/(z + 15) = 4/9 On multiplying both sides by 9(z + 15), we obtain 9z = 4(z + 15) ⇒ 9z = 4z + 60 ⇒ 9z − 4z = 60 ⇒ 5z = 60 ⇒ z = 12 |
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