Question

if a/b=5/3 and 8a +5b=22​

Answer 1

$8a + 5b = 22 \\ = > 8a = 22 - 5b \\ = > a = \frac{22 - 5b}{8} \\ = > (\frac{22 - 5b}{8} ) = b + \frac{5}{3} \\ = > \frac{22 - 5 b- 8b}{8} = \frac{5}{3} \\ = > 40 = 66 - 39b \\ = > 26 = 39b \\ = > b= \frac{2}{3} \\ \frac{a}{b} = \frac{5}{3} \\ a \div \frac{2}{3} = \frac{5}{3} \\ = > a = \frac{5}{2}$
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