What number could replace the o so that the given system of equations has one solution? Check all that apply. y = 4x-3

0; 2 ; 5

Step-by-step explanation:

4 is wrong because in this case we have the parallel lines, so the system is impossible

If the atom had 8 protons and 8 electrons (oxygen for example), knocking one of the electrons out, makes 8 protons and 7 electrons. the atom now has a net charge of +1 because the 7 electrons cancil the positive charges of 7 of the protons in the nucleus, but there is one remaining proton with a positive charge