For this one you have to make the equations. And what I like to do is write it out, like this.
One Week- $47
3 suits
1 shoes (pairs)
Another Week- $107
7 suits
2 shoes (pairs)
Then I make/choose my variables.
For suits, it's going to be s.
And For shoes let's do p.
(Or if you would like better you can do x and y, which ever works best for you)
Now for the equations:
One Week, 47= 3s +1p
Another Week, 107= 7s + 2p
Now it's time for the Substitution! :) Your last problem had it easier because it was already in the form, y=mx+b, but since ours aren't we have to change it to y=mx+b.
One Week, -0.33p + 15.67 =s
Another Week, -0.29p + 15.29 =s
Now you can use substitution. :)
For p i got 9.5 or 9.50.
For s, i got 12.34
So the answer is (9.5,12.34) or (12.34, 9.5) I forgot which sorry.
The work is in the picture(s).
I hoped this helped. :)
