Question

Arjun solved the equation 7·m=56 His work is shown. What error did Arjun make?

Answer 1

He multiplied rather than dividing.

$\mathrm{Divide\:both\:sides\:by\:}7 \ \textgreater \ \frac{7m}{7}=\frac{56}{7} \ \textgreater \ Simplify \ \textgreater \ m = 8$

Hope this helps!

Answer 2

Answer: Multiplyng both sides by 7 instead of dividing both sides by 7.

Step-by-step explanation:

Hi, by analyzing Arjun’s work, the mistake that he made was multiplying by 7 both sides instead of dividing both sides by seven.  

The correct way is:

7m = 56

Dividing each both sides by 7  

7m/7 = 56/7

m = 8

The real value of m is 8, not 392.

Feel free to ask for more if needed or if you did not understand something.