Answer:
x=7
Step-by-step explanation:
The two angles are alternate interior angles. If they lines are parallel, then the angles are equal.
7x-7 = 4x+14
Subtract 4x from each side
7x-4x -7 = 4x-4x+14
3x-7 = 14
Add 7 to each side
3x-7+7 = 14+7
3x=21
Divide by 3
3x/3 =21/3
x=7
