Julia: What do you think of my new uniform?
David: Quiet Julia I'm working.
Julia: What are you working on?
David: I'm trying to figure out these algebra questions I think I`ve got the answers.
Julia: Well then, let me check.
David: Fine, the first question is n+3-5n+12. My answer is -6n+15.
Julia: Well, I think your wrong, I think the answer is -4n+15
David: Really! How`d you get that?
Julia: Well first you have to use the distributive property like this: n+3-5n+12, n-5n+3+12, then you combine like terms like this: n-5n+3+12, -4n+15
David: Thanks Julia. The second question is: 2 + 4(3n+8), I got 12n + 10.
Julia: Well David, I guess you didn't listen in math class, because I think you're wrong again.
David: What do you mean? Show me.
Julia: Well first you do the you combine like terms like this 2+4(3n+8), 6(3n+8) then you get rid of the brackets by multiplying both the terms inside the brackets by six so you get 18n+48.
David: Wow thanks Julia, oh and nice uniform Julia.
Julia: Th...thanks David.