The canteen transported 800 kg of rice, and 4 / 3 of it has been eaten. How many kg have you eaten? Use the equation to solve

The canteen transported 800 kg of rice, and 4 / 3 of it has been eaten. How many kg have you eaten? Use the equation to solve

The solution ate x kg
x+800×3/4=800
x+600=800
x=200
A: 200 kg

The canteen paid 15 yuan for 8 kg cucumber and 6 kg eggplant, recovered 1.4 yuan, 0.8 yuan per kg cucumber, how much yuan per kg eggplant?
Solve the equation in detail

Let x yuan be per kilogram of eggplant
8*0.8+6X+1.4=15
7.8+6X=15
6X=7.2
X=1.2
Eggplant is 1.2 yuan per kilogram

The canteen bought 8 kg cucumber and 6 kg eggplant, paid 50 yuan in total, recovered 7.4 yuan. 2.4 yuan per kg cucumber, how much yuan per kg eggplant? (use equation solution)

Set X yuan per kilogram of eggplant
2.4×8+6x=50-7.4
19.2+6x=42.6
6x=42.6-19.2
6x=23.4
x=3.9