Question

Find Mitch's mistake.

Answer 1

C

Explanation:

Step 1

• 7.7 - 2 = w - 2 + 2

Step 2

• LHS ⇒ 7.7 - 2 = 5.7
• RHS ⇒ w - 2 + 2 = w [-2 and 2 cancel out = 0]
• ⇒ 5.7 = 2
• Mitch did not make a mistake