Question

Plzzzz I need Helpppp!!!​

Answer 1

(8x+15)=(7x+17){ being alternative angle}

8x+15=7x+17

8x-7x=17-15

x=2

here,

8x+15= 8×2+15

16+15=31

7x+17

7×2+17

14+17

31

again

(8x+15)+y=180°( being straight angle)

31+y=180

y=180-31

y= 149

Answer 2

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In the given figure, Angles (8x + 15) and (7x + 17) are equal

because they form pair of Alternate interior angles.

• 
  `8x + 15 = 7x + 17`

• 
  `8x - 7x = 17 - 15`

• 
  `x = 2`

So,

• 
  `8x + 15`

• 
  `( 8* 2) + 15`

• 
  `16 + 15`

• 
  `31 \degree`

now, as we can see Angle y and (8x + 15) are forming linear pair; so their sum measures 180°

• 
  `(8x + 15) + y = 180`

• 
  `31 + y = 180`

• 
  `y = 180 - 31`

• 
  `y = 149 \degree`