natalieherrera33299 natalieherrera33299

13-04-2021
Mathematics

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sqdancefan sqdancefan

14-04-2021

9514 1404 393

Answer:

x = 10

Step-by-step explanation:

In a parallelogram, adjacent angles are supplementary.

(9x +15) +(6x +15) = 180

15x +30 = 180 . . . . . . . . . . simplify

15x = 150 . . . . . . . . . subtract 30

x = 10 . . . . . . . . divide by 15

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