In what step is there first an error. Please explain the error, what misunderstandings the student has and how to correctly work the problem.
Given: 2(10 −13) +9 = −34 + 60
Step 1: 20 − 26 + 9 = −34 +60
Step 2: 17 = −34 +40
Step 3: 51x = 40
Step 4: =
40
51

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

they would have to work 32 hours.

your answer is 125y5