pancake71 pancake71

20-01-2021
Mathematics

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i really need help with this question i’m rlly confused (I’ll give brainliest!!)

i really need help with this question im rlly confused Ill give brainliest class=

Respuesta :

manilagurung86 manilagurung86

20-01-2021

Answer:

4x + 5x + 9 = 180 ( sum of co-interior angles)

or,9x + 9 = 180

or,9x = 180 -9

or,9x = 171

or, x = 171÷9

:.` x = 19

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