Question

Решить уравнение(40×3)÷х=6,25÷5×х=450,х÷(15×2)=3,с×(50×2)=500

Answer 1

120:x=6
x=120:6
x=20


5x=450
x=450:5
x=90

x=3*30
x=90

c=500:100
c=5