Answer:
the answer is 3
Step-by-step explanation:
because 3x3= 9
5x3=15 so 15-9=6
Answer:
x = 7
Step-by-step explanation:
Start by solving for
which is a common expression for both equations. Then in the first equation:

and in the second equation:

Now we make the two
expressions equal so we get:

Z-4/9-1/3=5/9
z-4 =5/9(9-1/3)
z-4 =4.414814815
z =8.814