Question

подскажите пож по матем

Answer 1

x=750:5



x=150
750:150=5
x=69:23
x=3
23•3=69

Answer 2

$1)x \div 5 = 19 \\ x = 19 \times 5 \\ x = 95 \\ 2)750 \div x = 5 \\ x = 750 \div 5 \\ x = 150 \\ 3)23 \times x = 69 \\ x = 69 \div 23 \\ x = 3$
вот держи............