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Y and Z are vertical angles
Y=(2X + 7)
Z=(4X - 17)
value of x

User Oksana
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1 Answer

5 votes
Vertical angles are equal to each other, so to solve this, you can set the angle measures equal to each other and solve for x.

Z = Y Replace X and Y with their values
4x - 17 = 2x + 7 Isolate the value. Start by adding 17 to both sides
4x = 2x + 24 Subtract 2x from both sides
2x = 24 Divide both sides by 2
x = 12

User Jon Roberts
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