At a bakery, Amanda paid $9.70 for 4 raisin buns and 3 waffles.

Daniel paid $6.90 for 3 raisin buns and 2 waffles. Michelle bought
2 raisin buns and 2 waffles. How much did Michelle pay?

1 answer

4 r + 3 w = 9.70
3 r + 2 w = 6.90
multiply first by 2 and second by 3
8 r + 6 w = 19.40
9 r + 6 w = 20.70
----------------------- subtract
- r = - 1.30
so raisins are 1.30 each
You do the rest.