Need help with this problem that needs to be solved using substitution:
3/4x-1/12y=-5/2
3/8x-1/6y=-1/2
I came up with several different answers and really don't know what to do...I tried multiplying it with 12 or 24 and it just doesn't makes sense..please help, thanks.....

Question

Need help with this problem that needs to be solved using substitution:
3/4x-1/12y=-5/2
3/8x-1/6y=-1/2 
I came up with several different answers and really don't know what to do...I tried multiplying it with 12 or 24 and it just doesn't makes sense..please help, thanks.....

anonymous · Answer

fractions are fractious so get rid of them
x ist by 12
9x - y =  - 30............a
x 2nd by 24
9x - 4y = -12..............b

from a :  9x = y-30
plug this into b:
y - 30 - 4y = -12
3y =  -18
y = -6
now plug this into  equation b to find x and you are home!

anonymous · Answer

Thanks for your help, I think I got it now.