Answer:x=20
Explanation:
Vertical angles Theorem, this means that the two angles are equal to each other.
set equal.
4x+30=110
solve.
-30 -30
4x=80
÷4 ÷4
x=20
Answer: x = 20°
These are vertical angles, which means they are congruent and equal to each other.
Given:
(4x + 30)° = 110°
Subtract 30° from both sides of the equation:
4x = 80°
Divide both sides of the equation by 4x:
x = 20°
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