Answer:
Let Tom's cards = x
Equation:
Neils Cards = x + 83 (Neil has 83 more cards)
x + 83 = 517 (Tom has 83 cards less than Neil)
x = 434
Option: step 2.
Because the student divided only the right side by 2. If you divide one side by a number you have to do the same with the other side to maintain the equality.
Answer:
2 seconds
Step-by-step explanation:
(7x2+x+9)-(3x2+4x-5)
4x2-3x+4 is your answer (: