The value of x is? also can you explain how to do this?

Mathematics

1 answer:

jek_recluse [69]3 years ago

6 0

We have to know the angle that is not labelled. (lets call it y)
9x + y= 180

and the sum of the angles of a triangle is 180
5x + (9+x) + y=180

2 simultaneous equations

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