-8+9+5z+7x use z=3 and x=5
your answer is 51 because you have to trade the 3 and the 5 out with the z and the x so to find your answer you add -8+9+5 then you 3 bc z=3 then you add 7 5 so you answer is 51
the answer is 51 bc if you multiply 7 and 5 you get 35 if you multiply 5 and 3 you get 15. so 15 plus 35 is 50 plus 9 and minus 8 you will get 51
