Answer:
is their answers? that we can see or a pic?
11 then Joann would have $2 left over.
7.8
Step-by-step explanation:
x=5, y=-2. (5, -2).
2x+3y=4
3x+4y=7
----------------
3(2x+3y)=3(4)
-2(3x+4y)=-2(7)
----------------------
6x+9y=12
-6x-8y=-14
-----------------
y=-2
2x+3(-2)=4
2x-6=4
2x=4+6
2x=10
x=10/2
x=5