Question

$\frac{x - 4}{4} = \frac{x + 3}{7}$
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Answer 1

Ответ:

$\frac{x - 4}{4} = \frac{x + 3}{7} \\ 7(x - 4) = 4(x + 3) \\ 7x - 28 = 4x + 12 \\ 7x - 4x = 12 + 28 \\ 3x = 40 \\ x = \frac{40}{ 3}$