There are 3 steps to solve a problem : 1. We set x = "what we are looking for". For example, we set x = "the price of a ticket for Christina Aguilera's concert". 2. We write down the equation which corespond to the problem. For example, if two concert tickets cost 5 dollars less than 73 dollars, to find the price of one ticket, we write 2x + 5 = 73. 3. We solve the equation with the method in chapter 5 : 2x + 5 = 73 2x = 73 - 5 2x = 68 x = 68÷2 x = 34 Do not forget to conclude with a small sentence : "One ticket for Christina Aguilera's concert costs 34 dollars". |