Question 12551
Vertical Angles are always equal, so set the two expressions equal and solve.
<P>
4x + 50 = 2x + 60 Subtract 2X from both sides
2x + 50 = 60 Subtract 50 from both sides
2x = 10 Divde both sides by 2
x = 5.
<P>
Check
4x + 50 = 4(5) + 50 = 20 + 50 = 70
2x + 60 = 2(5) + 60 = 10 + 60 = 70
<P>
Since we checked them and both angles are equal, we know x = 5