• Apr 27, 2026 big ideas math red answer key 84b both sides: 3x + 7 - 7 = 22 - 7 Simplifies to: 3x = 15 Solve for x: Divide both sides by 3: x = 15 / 3 x = 5 Using the Answer Key: Confirm that the solution x = 5 matches the key's solution. Review the explanation to understand why subtrac By Judge Auer
