Wendy was asked to write an equation and solve this problem.

Dylan bought a box of markers. He used 14 markers and had 18 that he didn’t use. How many markers were in the box?

Wendy’s work is shown below.

Steps
Wendy’s Work
Step 1
m minus 14 = 18
Step 2
m minus 14 minus 14 = 18 minus 14
Step 3
m = 4

In which step, if any, did Wendy first make a mistake in her work?
step 1
step 2
step 3
no mistake

no mistakes :)

Step-by-step explanation:

Step 1:

m - 14 = 18

Step 2: Wendy subtracted 14 to each side

m - 14 =  18

   - 14 = -14

Step 3: find your answer

       m  = 4 markers

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

answer: x=60