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I need help with this problem

I need help with this problem-example-1
User Regla
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1 Answer

3 votes

Answer: 33

Explanation:

There are lots of things you have to remember in parallel lines with transversal lines (the lines that cut through the parallel lines). In this picture, the angles shown are co-interior angles. Co-interior angles add up to 180°.

Given this, we can make and solve the following equation:


(x + 20) + (4x-5) = 180\\x + 20 + 4x - 5 = 180\\5x + 15 = 180\\5x = 165\\x = 33

If there are any steps you don't understand, I can go through it again, so please tell me :)

User Ansley
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