Question

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AB||CD. Find the value of x.

Answer 1

The value of x=10
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Answer 2

x = 10

Explanation:

The marked angles are called Alternate Interior Angles. They are equal to each other.

So, write an equation:

3x + 15 = 5x - 5

Subtract 3x

15 = 2x - 5

Add 5

20 = 2x

Divide by 2

10 = x