PLZZZZZZZZZZZZZZZ HELPPPPPP ASAP I NEEED THISS PLZZZZZZ
i need help on questions 1 and 3

Answer for #3: Yes, Ms. Bartlett is correct.
Step-by-step explanation:
2x - 3 - (x + 1) = x - 4
2x - 3 - x - 1 = x - 4
x - 4 = x - 4