Answer:
$remaining=86-6m
Step-by-step explanation:
$remaining = 80 - (m + 2m) - (3m-6)
$remaining = 80 - 3m - 3m +6
$remaining = 86 - 6m
80 -> total amount she brings into the store
m -> money spent on milk
2m -> money spent on fruit (two x m)
3m-6 -> bread (six dollars less than three times the milk value)
Simplify and the result is 86-6m