The work of a student to solve the equation 4(2x − 4) = 8 + 2x + 8 is shown below: step 1: 4(2x − 4) = 8 + 2x + 8 step 2: 6x − 8 = 16 + 2x step 3: 6x − 2x = 16 + 8 step 4: 4x = 24 step 5: x = 6 in which step did the student first make an error and what is the correct step? step 2; 8x − 4 = 2(6 + x + 6) step 2; 8x − 16 = 16 + 2x step 3; 6x − 2x = 16 − 8 step 3; 6x + 2x = 16 + 8

Step-by-step explanation:

Here, The work of a student to solve the equation :

The steps for calculating the value of x are :

Step 1: 4(2x − 4) = 8 + 2x + 8  

Step 2: 6x − 8 = 16 + 2x  

Step 3: 6x − 2x = 16 + 8  

Step 4: 4x = 24  

Step 5: x = 6

Step 2 is incorrect, as the student instead of multiplying, adds the number as :

4(2x − 4) = 8 + 2x + 8  

Here, the correct step is :

8x − 16 = 16 + 2x

6 x = 32

x = 5.33

So, the error is in STEP 2 and the correct option is (b).

76%

step-by-step explanation:

24% are dogs and the remaining is 76% because 100-24=76

25 questions , because they start with 100.  

350-100=250 .  

. 250/10=25

step-by-step explanation:

first take off 100, then what x 10 = 250? that is your answer. (25)