what do i do after i plug in all the variables?

80mL sample of flourine gas at 0 degree celcius has a pressure of 761 torr. what is its volume at 100 degree C and 761 torr?

P1 = 761 torr
V1 = 80 ml
T1 = 0 C = 0 + 273.15 = 273
P2 = 761 torr
T2 = 0 + 273.15 = 373.15 K
V2 = ?
761 torr)(80mL) = (761 torr)(V2)
(273 K) ......................... (373 K)

do i cross multiply or what? i dont get it