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Answer:

x = 35°

Step-by-step explanation:

The sum of angles of angles in a triangle is 180°.

And the sum of 110° and 40° is 150°.

To work out x-5 take 150° away from 180° (180-150=30).

x-5=30°

Add 5 to both sides

x-5+5=30+5 is x=35°