Question

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

Answer 1

Step 2 contains a mistake. The correct step should be "3x - 7 + 7 = 2 + x + 7", which simplifies to "3x = 9 + x".