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.....

amistre64 · Answer

multiply eq1 by 12 ; and eq 2 by 24 to clear the fractions

anonymous · Answer

Multiply Both sides of the first equation with 12xy and both sides of second equation with 24xy.
The new equations are 9y - x = -30xy 
                                  9y - 4x = -12xy
Now solve for x and y. 
Ans. y= -1/6, x = -1/4

amistre64 · Answer

thats also plausible; assuming x and y are denominators :)

amistre64 · Answer

usually this is a typo and means x and y are simply multiple of the fractions.

anonymous · Answer

Thank you for your help - I came up with some weird number though..thanks again :)

anonymous · Answer

:)