Can y’all Help me with this

Answer:
7 tonnes
Step-by-step explanation:
the vehicle is x
the load is 5/2 tonnes ( i simplify this)
the load is 5/9 the vehicle
we got the equation: 5/9x = 5/2
therefore x = 4.5 so the total mass of the vehicle is 4.5 + 5/2 = 7