## mikala1 2 years ago 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

1. hba

For part 1 If such situations occur there is no solution For part 2 There are 2 methods 1) Substitution 2)Elimination

2. hba

@mikala1

3. mikala1

yess

4. hba

Which one do you want to do Sub or Elim ?

5. mikala1

.. what is that

6. hba

A method to solve the equations.

7. mikala1

oo that thing i think it is sub

8. mikala1

am i correct

9. hba

No you can use 1 method Either Substitution or Elimination ? It is up to you.

10. hba

Which one do you want me to explain ?

11. mikala1

sub plz

12. hba

But Elimination is very easy

13. mikala1

ok then elim

14. hba

3y − 2x = 11 y + 2x = 9 ----------- ----------- Add them up ?

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16. mikala1

where do i start .... i have nbo clue how to do this

17. mikala1

is it 3y -4x=20

18. mikala1

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.

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20. mikala1

lol its correct thanks youuu

21. hba

You are welcome :)

22. UnkleRhaukus

part 1 4 = 4 has infinite solutions

23. hba

Really wouldn't it be no solution ?

24. UnkleRhaukus

any value of x works

25. hba

hmm :/

26. UnkleRhaukus

4=3 has no solutions

27. mikala1

ik i got that one lol its infinaty

28. hba

@UnkleRhaukus Thanks for telling. My bad :/

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