Answer:
Either 4+4=8 then take 1 away to get 7 or 3+3=6 then add 1 to get 7.
Step-by-step explanation:
The answer is 0.4328 liters hope this helped!
z = (x - 500) / 100
1.75 = (x - 500) / 100
175 = x - 500
675 = x
3x-x+2=4