What is the answer for this equation? (2x+-3)+(8x+4)=

(2x+-3)+(8x+4)=

2x -3 +8x +4 =

10x +1

(2x+-3)+(8x+4) = 10x +1

if you want write a equation you can write...

(2x+-3)+(8x+4)=10x +1

and the value of x is...

2x-3+8x+4 = 10x+1

2x+8x-10x = 1+3-4

x = 0

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐