Question

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

Answer 1

For part 1

If such situations occur there is no solution

For part 2

There are 2 methods

1) Substitution

2)Elimination

Answer 2

@mikala1

Answer 3

yess

Answer 4

Which one do you want to do


Sub or Elim ?

Answer 5

.. what is that

Answer 6

A method to solve the equations.

Answer 7

oo that thing i think it is sub

Answer 8

am i correct

Answer 9

No you can use 1 method

Either Substitution or Elimination ?

It is up to you.

Answer 10

Which one do you want me to explain ?

Answer 11

sub plz

Answer 12

But Elimination is very easy

Answer 13

ok then elim

Answer 14

3y − 2x = 11
y + 2x = 9
-----------
-----------

Add them up ?

Answer 15

@mikala1 ADD THEM UP !!

Answer 16

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

Answer 17

is it 3y -4x=20

Answer 18

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.

Answer 19

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

Answer 20

lol its correct thanks youuu

Answer 21

You are welcome :)

Answer 22

part 1

4 = 4

has infinite solutions

Answer 23

Really wouldn't it be no solution ?

Answer 24

any value of x works

Answer 25

hmm :/

Answer 26

4=3

has no solutions

Answer 27

ik i got that one lol its infinaty

Answer 28

@UnkleRhaukus

Thanks for telling.

My bad :/