Question

Solve the Liner system
x-4y=10
2x+y=2

Answer 1

@uri
Hate to ask you again but this is almost the same as the question you just helped me with :) these liner equations are driving me crazy!

Answer 2

It's easy,Okay a bit different.I'll help ya
We basically have to make the value of y same but different signs so it can be cancelled
So,
x-4y=10
2x+y=2(multiply by 4)

x-4y=10
8x+4y=8
======
9x=18
x=18/9
x=2

Now find y using the ORIGINAL eq 2 and putting the value of x @JoStudy

Answer 3

OK where did you get the multiply by 4?
and let's see if I can solve for Y
2(2)+y=2
4+y=2
4-4+y=2-4
y=-2
So the liner solution would be
(2,-2)

Answer 4

Is your profile picture totally white or is it my computer?

Answer 5

It's common sense xD
If we want to make x as 4x we muliply by 4 duh
and yea you did y right :)

Correct ha!

Answer 6

My pic is totally white..:3 i always don't like putting up my face c:

Answer 7

OK! So we multiply everything by 4! So to make x 4x we have to multiply which means we have to multiply everything else!
*lightbulb goes off*

Answer 8

Yes smarty :3

Answer 9

Thanks @uri :)