4(0+2)=8 not =10 so 0 can not be solution
12-8(0)=12 and 3(0+4)=12 so 0 can be solution for this equation
5.0=1/2.0 because anything times 0 will equal 0
0 can not be solution for the last one because 0 can not be devided by any number so 6 can not be used to decide 0 either
