To solve equations like this we need to do inverse operations.
First we need to build an equation: 9+3x=21
We pass the nine to the other side, subtracting the 9 to 21, that leaves us with 3x=12
After that we just divide 12 by 3, wich gives us x=4, or, as it says in the question: n=4
Now let's double check:
N=4, since 3*4=12 and 12+9=21
Hope it is helpful :)
Answer:
please tell me if you need to divide it or what yo need to do?
Step-by-step explanation:
There are 3 feet in a yard, so divide 34 by 3, which is 11 with a remainder of 1, the remainder 1 is the remaining foot, so 34 feet is 11 yards and 1 foot.
A square matrix that is not invertible is called singular or degenerate.
(f•g)(x) = -3(2x-6) -4
= -6x + 14
f•g(-7) = -6(-7) + 14 = 56
