Question

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

Step 1: 2(2x − 3) = 6 + 2x + 4
Step 2: 4x − 3 = 10 + 2x
Step 3: 4x − 2x = 10 + 3
Step 4: 2x = 13
Step 5: x = 6.5

In which step did the student first make an error and what is the correct step? can u guys pls help me

Answer 1

The equation was given as\[2(2x − 3) = 6 + 2x + 4\]

The steps he took were

Step 1: \[2(2x − 3) = 6 + 2x + 4\]
Step 2: \[4x − 3 = 10 + 2x\]
Step 3: \[4x − 2x = 10 + 3\]
Step 4: \[2x = 13\]
Step 5: \[x = 6.5\]

Now let's see the difference in his steps, and my steps.

Step 1 : \[2(2x − 3) = 6 + 2x + 4\]
Step 2 : \[4 x - 6 = 10 + 2x\]
Step 3 :\[ 4x - 2x = 10 + 6\]
Step 4 : \[2x = 16\]
Step 5 : \[x = 8\]

Which step does it look like he messed up on?

Answer 2

witch one

Answer 3

I'm asking you which one did he make his first mistake on.

We cant give you the answer.

If you mess up I will guide you and correct you.

Answer 4

ok

Answer 5

fr

Answer 6

will its is a test

Answer 7

ya

Answer 8

oh ok its my firths time here soi didnt know