Question

What is the value of x

Answer 1

Answer:

-1x = 27

Step-by-step explanation:

5.x=5x

5.4=-20

7-(-20)=27

5x -4x=-1x

-1x=27

Answer 2

Answer:

The answer to your question is:  x = 27

Step-by-step explanation:

The are vertical angles, so they measure the same:

                          4x + 7 = 5(x - 4)

                          4x + 7 = 5x - 20                       Expanding

                          4x - 5x = -20 - 7                       Simplify like terms

                          -x = -27

                           x = 27