anonymous
  • anonymous
confused on this one because if i multiply the first equation by 2, it cancels out both the x and y components. Solve by the elimination method. 2x + 3y =1 4x + 6y = 2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
that is okay but you need to multiply first equation by -2
anonymous
  • anonymous
sorry about that...you will get 0=0 which is always true so infinitely many or all real numbers as solution
anonymous
  • anonymous
ok, that is the first time i saw the answer come out like that, thanks!

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anonymous
  • anonymous
you're welcome....good job on elimination...you may also get something like -2=0 which is never true so NO SOLUTION
anonymous
  • anonymous
so which would it be, infinitely many solutions or no solution?
anonymous
  • anonymous
no solution is a different type-when left side doesn't equal right side INFINETLY MANY/ALL real numbers mean same things
radar
  • radar
You have what is known as an identity.
anonymous
  • anonymous
exactly radar
radar
  • radar
I hope the course that ms elegant prepared for such an event lol
anonymous
  • anonymous
can you help me with polynomial question Find polynomial P(n)=Sn for 1, 2, 3, ...10 and explain method
anonymous
  • anonymous
so the answer i get when multiplying by -2 is 0=-2. so I'm guessing that the answer is there is no solution. but how do i perform a check to make sure that my answer is right?
radar
  • radar
It is unsolvable,it is an identity, it is the same equation just one is double the other you need two distinct equations for the two unknowns.
radar
  • radar
btm2011, I wouldn't be much help on that polymonial series!
anonymous
  • anonymous
ok, so there is no solution, thx!
radar
  • radar
Ms elegant do you understand even though they provided you with two equations, they are actually the same, one does not provide any new information for you.
anonymous
  • anonymous
for that problem the answer is all real numbers, infinitely many (identity) because 0=0 -2(2x+3y=1)____-4y-6y=-2
anonymous
  • anonymous
-4y-6y=-2 + 4x+6y=2
anonymous
  • anonymous
There is a solution!
anonymous
  • anonymous
ok i think i got it, there is a solution, but it is just an infinite amount of solutions that can be the answer, right?
anonymous
  • anonymous
YES...bc every number equals itself
radar
  • radar
yes, x=0 and y=1/3 could be a solution, but there is no specific solution, I could put down another solution like x=-2, y=1
anonymous
  • anonymous
ok, i get it. and that's the check, that several answers fit this equation - so there are infinite solutions, not just one
radar
  • radar
That is what it seems to be.
anonymous
  • anonymous
ok great thx! i appreciate the explanation so that i could understand what i was doing
anonymous
  • anonymous
GREAT!

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