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I only need help with x

I only need help with x-example-1

1 Answer

4 votes

Answer:

x = 7

Explanation:

The triangle on the right is an equilateral triangle as the three interior angles are of the same degree, thus

5y - 4 = 3x - 5

Since we know that y= 4,

20 - 4 = 3x - 5

x = 7

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