Let
x--------> tickets sold from The Godfather
y--------> tickets sold from Santa Clause
z--------> tickets sold from E.T
we know that
[tex] x=1,000,000+2y [/tex]-------> equation 1
[tex] z=15,000,000+2x [/tex] -------> equation 2
[tex] x+y+z=270,000,000 [/tex] -------> equation 3
Substitute equation 1 in equation 2
[tex] z=15,000,000+2*[1,000,000+2y] [/tex]
[tex] z=17,000,000+4y [/tex] -------> equation 4
Substitute equation 1 and equation 4 in equation 3
[tex] [1,000,000+2y]+y+[17,000,000+4y]=270,000,000 [/tex]
[tex] 18,000,000+7y=270,000,000 [/tex]
[tex] y=36,000,000 [/tex]
find the value of x
[tex] x=1,000,000+2*36,000,000 [/tex]
[tex] x=73,000,000[/tex]
therefore
the answer is
73,000,000 tickets