Question

3,6 •2/3x-2/3x=23,4
Решите пожалуйста

Answer 1

Пошаговое объяснение:

$3.6 \times \frac{2}{3} x - \frac{2}{3} x = 23.4 \\ \frac{2}{3} (3.6x - x) = 23.4 \\ \frac{2}{3}( 2.6x) = 23.4 \\ 2.6x = 23.4 \times \frac{3}{2} \\ 2.6x = 11.7 \times 3 \\2 \frac{6}{10} x = 11 \frac{7}{10} \times 3 \\ \frac{26}{10} x = \frac{117 \times 3}{10} \\ x = \frac{351}{10} \times \frac{10}{26} = \frac{351}{26} = 13 \frac{13}{26} = 13\frac{1}{2} = 13.5$