In the equation 15x40x-15x24x = 750x2, the large x multiplier and the small X are unknowns~

In the equation 15x40x-15x24x = 750x2, the large x multiplier and the small X are unknowns~

15X40x-15X24x=750X2
600x-360x=1500
240x=1500
x=1500÷240
x=6.25