Question

The work of a student to solve the equation 3(2x – 4) = 8 + 2x + 6 is shown below:

Step 1: 3(2x – 4) = 8 + 2x + 6

Step 2: 5x – 7 = 14 + 2x

Step 3: 5x – 2x = 14 + 7

Step 4: 3x = 21

Step 5: x = 7

In which step did the student first make an error and what is the correct step? (5 points)



Step 3; 5x – 2x = 14 – 7
Step 2; 6x – 7 = 2(6 + x + 4)
Step 2; 6x – 12 = 14 + 2x
Step 3; 5x + 2x = 14 + 7

Answer 1

@ahamed.

Answer 2

Got it

Answer 3

Step 2 :)

Answer 4

Step 2; 6x – 7 = 2(6 + x + 4)

Answer 5

thanks!

Answer 6

Step 2 :) medal and @ me for more

Answer 7

Np bro