The common factor would be 3 because 3 is the highest multiple of 15 and 9
D 24 do order of operations perenthesis, exponents, multiplication or division, addition or subtraction
3y+15=4y-3
Subtract 3y from both sides
15=y-3
Add 3 to both sides
Y=18
4(18)-3
72-3
69 both angles are 69
