[tex]14y-51=187+4y \\ 10y=187+51 \\ 10y=238 \\ y=23.8[/tex] so sorry but in this case the answwer is not 17. the first thing i did was rewrite the equation, then i moved like terms to the same sides (y's on the left numbers on the right), then i combined like terms (i did this for the y's in the previous step because i did it menatally), finally i isolated y by dividing by 10 to get the answer of y=23.8