Which step contains a mistake in solving the equation: 3x - 7 = 2 + x
Step 1: 2x - 7 = 2
Step 2: 2x = 5
Step 3: x= 5/2
• Step 1 - should have added x to both sides
O Step 2: should have added 7 to both sides
O Step 3: should have divided by 5 on both sides
• There is no mistake. This equation was solved correctly.