Answer:
164
Step-by-step explanation:
Remark
The two base angles are equal. That means that
<M = <J
18x + 8 = 11x + 15 Subtract 8 from both sides
18x = 11x + 15 - 8 Combine
18x = 11x + 7 Subtract 11x from both sides
18x - 11x = 7 Combine
7x = 7 Divide by 7
x = 7/7
x = 1
Find J
<J = 18x + 8
<J = 18*1 + 8
<J = 26
Find K
<K is supplementary to <J
<K + <J = 180
<K + 26 = 180
<K = 180 - 26
<K = 164
