3 years ago

Bx - ay = 2 ax + by = 3

Mathematics

1 answer:

ohaa [14]3 years ago

8 0

Hope it will help you!

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olchik [2.2K]

Check the picture below.

$a+b=180\implies b=180-a \\\\\\ \stackrel{\textit{substituting on the 2nd equation}}{a-39=2(180-a)}\implies a-39=360-2a\implies 3a-39=360 \\\\\\ 3a=321\implies a = \cfrac{321}{3}\implies \boxed{a = 107}~\hfill \boxed{\stackrel{180-107}{b = 73}}$

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Mrrafil [7]

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