Question

решите срочно: 5х-3*7:9-45=40​

Answer 1

5х-3*7:9-45=40

$5x - \frac{3 \times 7}{9} - 45 = 40$

$5x - \frac{7}{3} - 45 = 40$

$5x - \frac{142}{3} = 40$

$5x = 40 + \frac{142}{3}$

$5x = \frac{262}{3}$

$x = \frac{262}{15}$

$x = 17 \frac{7}{15} \: \: \: abo \: \: \: x = 17.46$