pleasee helppp! help needed:(

Step-by-step explanation:

1st diagram is vertically opposte angles.

so,

a)

3x + 5 = 5x-57

3x - 5x = -5 - 57

-2x = -62

2x = 62 (cancle both the - in both sides)

x= 62/2

x=31

2nd diagram(beside to 1st diagram) both the equation lies under linear pairs. so,

b)

4x+ 150 + 2x = 180°

6x + 150 = 180

6x = 180-150

6x = 30

x=30/6

x = 5

then,

(CI. 1-119 ) below that atement,

a)

both are in alternative pairs so,

x+15=102

x=102-15

x=87

b) both are vertically opposte angles.

so,

x+21 = 7x - 3

x - 7x = -21 - 3

-6x = -24

6x = 24

x= 4  (cancle both the - in both sides)

c)

both are in linear pair so,

3x+8 +  2x + 2 = 180°

5x + 10 = 180

5x = 180 - 10

5x = 170

x=170/5

x= 34

pls follow

the infinity sign

step-by-step explanation:

answer: it is d

step-by-step explanation: