mikala1
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
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This Question is Closed
hba
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For part 1
If such situations occur there is no solution
For part 2
There are 2 methods
1) Substitution
2)Elimination
hba
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@mikala1
mikala1
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yess
hba
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Which one do you want to do
Sub or Elim ?
mikala1
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.. what is that
hba
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A method to solve the equations.
mikala1
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oo that thing i think it is sub
mikala1
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am i correct
hba
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No you can use 1 method
Either Substitution or Elimination ?
It is up to you.
hba
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Which one do you want me to explain ?
mikala1
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sub plz
hba
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But Elimination is very easy
mikala1
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ok then elim
hba
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3y − 2x = 11
y + 2x = 9
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Add them up ?
hba
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@mikala1 ADD THEM UP !!
mikala1
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where do i start .... i have nbo clue how to do this
mikala1
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is it 3y -4x=20
mikala1
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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
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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
mikala1
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lol its correct thanks youuu
hba
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You are welcome :)
UnkleRhaukus
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part 1
4 = 4
has infinite solutions
hba
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Really wouldn't it be no solution ?
UnkleRhaukus
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any value of x works
hba
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hmm :/
UnkleRhaukus
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4=3
has no solutions
mikala1
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ik i got that one lol its infinaty
hba
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@UnkleRhaukus
Thanks for telling.
My bad :/