anonymous
  • anonymous
Can some one please explain this example question to me Part 1: If you were solving a system of equations and you came to a statement like 4 = 4, what do you know about the system? Part 2: Solve the following system and show all of your work. 3y − 2x = 11 y + 2x = 9
Mathematics
jamiebookeater
  • jamiebookeater
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hba
  • hba
For part 1 If such situations occur there is no solution For part 2 There are 2 methods 1) Substitution 2)Elimination
hba
  • hba
@mikala1
anonymous
  • anonymous
yess

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hba
  • hba
Which one do you want to do Sub or Elim ?
anonymous
  • anonymous
.. what is that
hba
  • hba
A method to solve the equations.
anonymous
  • anonymous
oo that thing i think it is sub
anonymous
  • anonymous
am i correct
hba
  • hba
No you can use 1 method Either Substitution or Elimination ? It is up to you.
hba
  • hba
Which one do you want me to explain ?
anonymous
  • anonymous
sub plz
hba
  • hba
But Elimination is very easy
anonymous
  • anonymous
ok then elim
hba
  • hba
3y − 2x = 11 y + 2x = 9 ----------- ----------- Add them up ?
hba
  • hba
@mikala1 ADD THEM UP !!
anonymous
  • anonymous
where do i start .... i have nbo clue how to do this
anonymous
  • anonymous
is it 3y -4x=20
anonymous
  • anonymous
2x = 3y - 11 so y + (3y - 11) = 9 4y = 20 y = 5 5 + 2x = 9 2x = 4 x=2 So x=2 and y=5.
hba
  • hba
You can check if your answer is correct by putting x=2 and y=5 in your equations and checking if, L.H.S=R.H.S if LHS=RHS then your answer is correct,If not then i am sorry your answer is incorrect
anonymous
  • anonymous
lol its correct thanks youuu
hba
  • hba
You are welcome :)
UnkleRhaukus
  • UnkleRhaukus
part 1 4 = 4 has infinite solutions
hba
  • hba
Really wouldn't it be no solution ?
UnkleRhaukus
  • UnkleRhaukus
any value of x works
hba
  • hba
hmm :/
UnkleRhaukus
  • UnkleRhaukus
4=3 has no solutions
anonymous
  • anonymous
ik i got that one lol its infinaty
hba
  • hba
@UnkleRhaukus Thanks for telling. My bad :/

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