Need the value for x and y

B. x = 20, y = 128

Step-by-step explanation:

( 3x - 8 ) and ( 2x + 12 ) are vertically opposite angles.

Vertically opposite angles are equal.

3x - 8 = 2x + 12

3x - 2x = 12 + 8

x = 20

( 3x - 8 ) + y = 180 ( Reason : Linear pair )

3 ( 20 ) - 8 + y = 180

60 - 8 + y = 180

52 + y = 180

y = 180 - 52

y = 128

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)