Question

2x+4/x=9
$2x + 4 \div x = 9$
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Answer 1

$\frac{2x + 4}{x} = 9 \\ 2x + 4 = 9x \\ 4 = 9x - 2x \\ 4 = 7x \\ \frac{4}{7} = x$

verification

$\frac{2( \frac{4}{7} ) + 4}{ \frac{4}{7} } = 9 \\ \frac{8}{7} + 4 = 9 \times \frac{7}{4} \\ \frac{8 + 28}{7} = \frac{63}{4} \\ \frac{36}{7} = \frac{63}{4} \\\ \frac{63}{7} = \frac{36}{4} \\ 9 = 9$