When startfraction 2 x squared over y endfraction = startfraction w + 2 over 4 endfraction is solved for w, one equation is w = startfraction 8 x squared over y endfraction minus 2 which of the following is an equivalent equation to find w? w = startfraction 8 x squared + 2 y over y endfraction w = startfraction 8 x squared minus 2 y over y endfraction w = 8 x squared minus 3 y w = 8 x squared minus y