3 years ago

Question in the link below.

Mathematics

2 answers:

Harlamova29_29 [7]3 years ago

8 0

We can suggest this equation:
5x=40º+x
5x-x=40º
4x=40º
x=40º/4
x=10º

Answer: x=10º

olga_2 [115]3 years ago

3 0

The 5x and the combination of (40° + x) are "vertical angles".
Vertical angles are equal.
So
5x = 40° + x

Subtract 'x' from each side: 4x = 40°

Divide each side by 4 : x = ?

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