Need to show a 5 step problem on how to get the answer. using x and y

  $5.64

Step-by-step explanation:

Let x represent 1 box of batteries

Let y represent 1 case of batteries

Given: 14x = 3y

Given: 158 = 14x + 3y

Use substitution: 158 = 14x + 14x

Simplify:                158 = 28x

Divide by 28:        5.64 = x

since it is absolute values, it is:

4z+6=1/222 +4

and 4z-6=1/22+4

You solve from there. Hopefully that is right and hopefully it helped