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18-10-2017
Mathematics

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

the value of x is also can you explain how to do this class=

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asmahusari asmahusari

18-10-2017

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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