It is given in the question that
Arshad's father bought x sweets, (44 - x) were eaten by the children and 20 were left.
It is given that the total sweets are x .
So the equation is
[tex]44-x+20 = x[/tex]
Combining like terms, we will get
[tex]64 - x = x[/tex]
Adding x to both sides
[tex]64 = 2x[/tex]
Dividing both sides by 2
[tex]x = 32[/tex]
THerefore Arshad's father bought 32 sweets .