Question

2.(X-260 4 4 3 = 53 +x- -270 x=8 X помогите плз даю 15баллов​

Answer 1

Ответ:

$2 \times (x - 2 \frac{1}{10} ) + 4 \frac{1}{5} = 5 \frac{1}{3} \\ 2 \times (x - \frac{10 \times 2 + 1}{10} ) + \frac{5 \times 4 + 1}{5} = \frac{3 \times 5 + 1}{3} \\ 2 \times(x - \frac{21}{10} ) + \frac{21}{5} = \frac{16}{3} \\ 2 \times x - 2 \times \frac{21}{10} + \frac{21}{5} = \frac{16}{3} \\ 2x - \frac{21}{5} + \frac{21}{5} = \frac{16}{3} \\ 2x = \frac{16}{3} \\ 2x \times 3 = 16 \\ 6x = 16 \\ x = \frac{16}{6} \\ x = 2 \frac{4}{6} = 2 \frac{2}{3}$