Find the value of each variable in the diagram given that a ∥ b.
Can you also explain please? Thank you!

The values are as follows:
z=50
v= 150
x= 100
y=15
w= 50
Parallel lines are lines in a plane that are always the same distance apart.
z+130= 180 (Linear pair)
z=50
v+ 30 = 180 (Linear pair)
v= 150
x= 180- 30 - 50 (angle sum property)
x= 100
2y=30 (alternate interior angle)
y=15
w+x+2y=180 (Linear pair)
w+ 100 + 30 = 180
w= 50
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