Answer: To fill in every box of this answer, here would be each lines answers. I will put the numbers that are needed for the boxes in bold!
Step-by-step explanation:
3x + 15 = 2x + 10 + x + 5. Original Equation.
3x + 15 = 3x + 15. Combine Like Terms.
3x - 3x + 15 = 3x - 3x + 15. Subtract 3x off both sides.
15 = 15. Final Answer,
