Question

Х × 4 = 360
Х × 7 = 63
680 - Х =300

Answer 1

Ответ:

1)x*4=360

4x=360|:4

4x:4=360:4

x=360:4

x=90

2)x*7=63

7x=63|:7

7x:7=63:7

x=63:7

x=9

3)680-x=300

680-x-680=300-680

-x=300-680

-x=-380

x=380

Answer 2

Пошаговое объяснение:

$1)x \times 4 = 360 \\ 4x = 360 \\ x = 90$

$2)x \times 7 = 63 \\ 7x = 63 \\ x = 9$

$3)680 - x = 300 \\ - x = 300 - 680 \\ - x = - 380 \\ x = 380$