What is the solution to this problem

x-17= -5

Hi

X-17 = -5

X = -5+17

X = 12

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

there would only be 50 odd numbers between 1 and 100 so therefor there would be 50 even so that would only be 50 odd numbers.