Answer:
0 solutions the way you have written the equation
Step-by-step explanation:
There were 45 pies sold in all.
10 + 15 = 25
25 + 20 = 45
(look at picture below)
- 1625
420 times 4 = 1680
1624 - 1680 = -56
-56 - 600 - 1000 = -1625
BRAINLIEST PLEASE