You have to start by using the distributive property on the left side.
3(2x-7)=5x+4
6x-21=5x+4 Then remove and combine alike terms.
+21 +21
6x=5x+25
-5x -5x
x=25
14 -16=-2 17-20=-3 it's just regular problems backwards
1/4 = 0.25
8.25 + 0.25w = 10.25
0.25w = 10.25 - 8.25
0.25w = 2
w = 2 / 0.25
w = 8 <===
Is there information we are missing to this problem? What I believe we are missing is the amount of money she starts off with and the other three items she finds.
