Question

$\frac{5x}{3} + \frac{2}{5} = 1$
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Answer 1

Answer:

$\frac{5x}{3} + \frac{2}{5} = 1 \\ \\ = \geqslant \frac{5}{3}x = 1 - \frac{2}{5} \\ \\ = \geqslant \frac{5}{3}x = \frac{5 - 2}{5} \\ \\ = \geqslant \frac{5}{3}x = \frac{3}{5} \\ \\ = \geqslant x = \frac{5 \times 5}{3 \times 3} \\ \\ = \geqslant \frac{25}{9}$

Answer 2

$\frac{5x}{3} + \frac{2}{5} = 1 \\ \frac{5x}{3} = 1 - \frac{2}{5} \\ \frac{5x}{3} = \frac{3}{5} \\ 5x \times 5 = 3 \times 3 \\ 25x = 9 \\ x = \frac{9}{25}$