Question

he work of a student to solve the equation 2(5y − 2) = 12 + 6y is shown below:

Step 1: 2(5y − 2) = 12 + 6y
Step 2: 7y − 4 = 12 + 6y
Step 3: y − 4 = 10
Step 4: y = 14
Step 5: y = 7

In which step did the student first make an error and what is the correct step?

Step 2: 7y − 4 = 6 + 3y

Step 2: 10y − 4 = 12 + 6y

Step 3: 5y − 2 = 2(10 + 3y)

Step 3: 2(5y − 2) = 10 + 3y

Answer 1

my guess is B am I right

Answer 2

yes you are correct

Answer 3

thank you for your hlp is remembered