Judy thought of a number, subtracted 11 from it, divided the result by 8 and then added seven to it and got an answer of 10. what is judy's number?

Apatient is to take 60 mg of an antibiotic on day 1, take 45mg on days 2 and 3, take 30mg on days 4 and 5 and take 15 mg on days 6 and 7. how many total mg will the patient take?

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

How is working backward similar to solving an equation?