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eliminate either r or s...s looks better since you have opposite signs already
multiply by top by 3 and bottom by 4
would it be r=1.3?
9r - 12s = -18 16r +12s=68
solve for r
r= 10/3 sp sub that in to find s
3(10/3) - 4s = -6 10-4s=-6 -4s = -16 s= 4
Ok I'm really confused, where did the 10 come from? Sorry I have a learning disability and really have a hard time with math.
it is solving a system by elimination with multiplication....ever heard of that
Yes, I am doing that right now in my math class, please don't think I am looking for you to give me the answer. I have Math 117 next and I have to understand this.
It has only ever shown how to solve when y or x is a negative and positive of the same number never two different numbers
can you come to whiteboard so I Can write it out http://www.twiddla.com/536745