Tim was asked to solve the equation kx = my - mx for x. His solution is shown below.

Start : kx = my - mx

Step 1: kx+mx= my

Step 2: x(k+m) = my

Step 3: x= my/k+m / sign is a fraction bar

In which step did Tim make his FIRST mistake when solving the equation?

A. Step 1
B. Step 2
C. Step 3
D. Tim did not make a mistake.

I think it is 'A'?

Question

Tim was asked to solve the equation kx = my - mx for x. His solution is shown below. 

Start : kx = my - mx

Step 1: kx+mx= my

Step 2:  x(k+m) = my

Step 3: x= my/k+m     / sign is a fraction bar

In which step did Tim make his FIRST mistake when solving the equation?

A. Step 1
B. Step 2
C. Step 3
D. Tim did not make a mistake.

I think it is 'A'?

anonymous · Answer

c) x=my/(k+m)

anonymous · Answer

c  )  he didn't put ( ) in   k+m

anonymous · Answer

Ah, I apologize. I'm just trying to run this through. @Hero

mertsj · Answer

D

anonymous · Answer

@ASAAD123 But wait, I said that the / was a fraction bar. I meant 'my' over 'k+m'. Doesn't that make a difference?