What is 12x+15=12x-15

Hope this one help,, just saw this

Step-by-step explanation:

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

< 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⭐

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation: