If x + 3 = 9 then x =

A: 3
B: 9
C: 12
D: 27
E: none of the above

E

Step-by-step explanation:

do 9-3 and it's gonna be 6

E: non of the above

Step-by-step explanation:

you subtract 3 from 9 and your answer is 6 so x=6

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

where is the option given