Lara solved an equation incorrectly, as shown below: Step 1: 2x = 18 Step 2: x = 18 − 2 Step 3: x = 16 Which statement best explains why Step 2 is incorrect in Lara's solution? A) She did not divide 18 by 2. B)She did not add 2 to 18. C)She did not multiply 18 by 2. D) She did not multiply 18 two times.

• Jazzyjuju: The answer is b. 18/2=9
• :

  We have been given the steps to solve the equation as

  Step 1: 2x = 18

  Step 2: x = 18 − 2

  Step 3: x = 16

  There is an error in step 2.

  We have [tex]2x=18[/tex]

  x is in multiplication with 2. So in order to get rid of 2 from the left hand side, we perform opposite operation of multiplication i.e. division.

  So we must divide both sides by 2.

  Therefore, A is the correct option.

  A) She did not divide 18 by 2.