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wariber [46]
4 years ago
10

What is the value of x

Mathematics
2 answers:
gayaneshka [121]4 years ago
8 0

Answer:

-1x = 27

Step-by-step explanation:

5.x=5x

5.4=-20

7-(-20)=27

5x -4x=-1x

-1x=27

timama [110]4 years ago
3 0

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

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