Friday, September 18, 2009

september 17th

2x+4y=8
3x+y=-13

find the letter with out a number beside it and get y by itself and then put that in to the y value in the first equation then get rid of the brackets my mutiplying by 4 then collect the like termsthen get the x value by itself. after that divide both ends by the number behind the x and then you end up with x=-6
then put the x value into the second equation and solve it by getting y by itsekf and then you have y=5

there for (-6,5)

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