Find the value of x. (5x +13) (4x+ 2)° (2x -9)

Mathematics

1 answer:

SOVA2 [1]3 years ago

5 0

Answer:

x = 20

Step-by-step explanation:

By exterior angle theorem, we have:

$(4x + 2) \degree + (2x - 9) \degree = (5x + 13) \degree \\ \\(4x + 2 + 2x - 9) \degree = (5x + 13) \degree\\ \\(6x - 7) \degree = (5x + 13) \degree \\ \\ 6x - 7 = 5x + 13 \\ \\ 6x - 5x = 13 + 7 \\ \\ x = 20$

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