lexierysthee lexierysthee 30-11-2020 Mathematics contestada i need help please. Which of the following expressions are equivalent to 7x + 14 − 3x + 12? 1. 21x + 8x 2. 7x − 3x + 14 + 12 3. 4x + 14 + 12 4. 4x − 2 5. 7x + 26 − 3x