Answer:
Step-by-step explanation:
l// m , t is transversal.
Corresponding angles are equal.
3x - 20 = 2x + 10
Add 20 to both sides
3x = 2x + 10 + 20
3x = 2x + 30
Subtract 2x from both sides
3x - 2x = 30
x = 30
