Assuming that the expression equals 0
3x+9=0
Subtract 9
3x= -9
-9/3= -3
x= -3
Step-by-step explanation:
hope it will be helpful to you
2/5 of marbles are blue
= 3/5 of marble are not blue.
Number of non-blue marbles = 500 * (3/5) = 300.
300 marbles are not blue.
Answer:
a
