Stumped one this one. A piece of cake for you guys, probably haha so yeah here it is.

Solve the linear system using substitution.

3x+2y=5
5x-9y=-4

Thanks. :)

Question

Stumped one this one. A piece of cake for you guys, probably haha so yeah here it is.

Solve the linear system using substitution.

3x+2y=5
5x-9y=-4

Thanks. :)

harsimran_hs4 · Answer

find out y in terms of x or x in terms of y and substitute it`s value in the 2nd equation

anonymous · Answer

Yep, and I got y=3/2x + 5/2

Plugged it into the second equation but came out with a totally wack answer.

harsimran_hs4 · Answer

1st part is wrong
it should be y = -3/2x +5/2
you missed the - sign

anonymous · Answer

Nooo, pretty sure there isn't negative in the first one. :P

harsimran_hs4 · Answer

3x+2y=5
2y = 5 - 3x
y = 5/2 - 3/2x
so it`s - sign  whereas you have written y = 5/2 +3/2x which is wrong

anonymous · Answer

Oh yeah, we'll I did do a negative on paper, re wrote it wrong here.

anonymous · Answer

You get...

5x-9(-3/2x+5/2) = -4

harsimran_hs4 · Answer

yes this is right

anonymous · Answer

Then I got....

5x-27/2x-45/2=-4

harsimran_hs4 · Answer

no 
- with -  cancels out
so it should be
5x + 27/2x - 45/2=-4

anonymous · Answer

Indeed, sorry.

Then I got, 37/2x = 18 1/2

I may lose you at this part, so yeah brace yourself. :P

harsimran_hs4 · Answer

yes thats right and it gives you x = 1

anonymous · Answer

That's correct, thanks! :-D

harsimran_hs4 · Answer

welcome :)