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21-10-2020
Mathematics

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Find the value of x.

The answer choices are: 5, 7, 3, 11, 9

Find the value of x The answer choices are 5 7 3 11 9 class=

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Аноним Аноним

21-10-2020

Answer:

x = 3

Step-by-step explanation:

Hi there !

DBC + CBV = 180°

DBC + BDC + DCB = 180° }=> VBC = BDC + DCB

replace

20x + 5 = 9x - 2 + 40

solve the equation

20x - 9x = 40 - 2 - 5

11x = 33

x = 33 : 11

x = 3

Good luck !

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