Question

x+x+y=230
y-x=5
y=?
a)65 b)80
c)70 d)85

Answer 1

Step-by-step explanation:

(i) Two rays OA and OB, with a common end-point O, form an angle AOB that is represented as 

(ii) The interior of an angle is the set of all points in its plane, which lie on the same side of OA as B and also on the same side of OB as A.

(iii) An angle greater than

 is called an obtuse angle.

180°

 but less than

90°

Answer 2

Answer:

x+x+y = 230

y-x = 5  ( multiply by 2)

2y-2x = 10

add the multiplyed equation the the 1st equation.

2y-2x = 10

y+2x = 230

whisch gives 3y = 240

y=240/3

y=80

hope it  helps..