Answer:
14=x
<N =51
Explanation:
A parallelogram has the two opposite angles equal.
<K = <M
8x+17 = 12x-39
Subtract 8x from each side
8x+17-8x = 12x-8x-39
17 = 4x-39
Add 39 to each side
17+39 = 4x-39+39
56 = 4x
Divide by 4
56/4 = 4x/4
14=x
Now find angle N
We know consecutive angles are supplementary.
<N + < M = 180
<N + 12x-39 = 180
<N + 12 (14) -39 = 180
<N +168 -39 = 180
<N +129 = 180
<N +129-129 = 180-129
<N =51