Respuesta :
subtracting 5z from both sides leaves 2=0, with this there is no solution...hope this helped :)
minus 5z from both sides
2=0
false
there is no solution because no matter what value you choose for z, they will cancel out and you will be left with
2=0
2=0
false
there is no solution because no matter what value you choose for z, they will cancel out and you will be left with
2=0