What is the justification for each step in the solution 4(-6x-3) + 24 = -72x + 132

                        you multiply 4 to -6x and -3

              you combined the one that has the same variable and no variable number like

                     (-72x )+ (-24x) = -96x

                    (-12) + 24 = 12

        subtract 12 on both sides, like this -96 + 12-12 = 132-12  then you've got -96x = 120

          you divide -96, like this -96x/-96 = 120/-96 , so you will got the x = -1.25

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5