X=3.2 SO from the beginning, you start with the original equation. to combine like terms(x) you subtract 1.50x from both sides leaving you with 19.00=1.25x+15.00 then to start isolating the variable(x) you subract 15.00 from both sides leaving you with 4.00=1.25x then with a simple division problem that leaves you with x=3.2 hope I helped!