Answer:
60
Explanation:
The two angles that are shown are corresponding meaning that they are the same angles so to solve for x you would set up an equation and because they are the same the equation would be
10x-20=7x+4
step 1 add 20 to each side
10x=7x+24
step 2 subtract 7 from each side
3x=24
step 3 divide by 3 to each side
x = 8