Additive indentity
![(5 + 2) + n](https://tex.z-dn.net/?f=%285%20%2B%202%29%20%2B%20n)
n = 1
a variable is always a number itself remember 7+n
5+2 = 7
Answer:
First equation : 3, 0, -3, -6
Second equation : 2, 2.5, 3, 3.5
Step-by-step explanation:
What the first equation is basically saying is subtract 3 each time.
What the second equation is basically saying is add 0.5 each time.
Then we just add/subtract to find the first four terms.
Add the numbers 7 + 10
17 - 7j = -10 - 4j
subtract 17 from both sides
-7j = -27 - 4j
add 4j to both sides
-3j = -27
divide both sides by -3
j = 9
Carrie will spend 248.75 on 25 t-shirts. Multiply $9.95 by 25.