Answer:

Step-by-step explanation:
We know that 
Also , 
So ,

Answer:
you need to simplify them like 2n+6 simplifird if 2.(n+3)
Step-by-step explanation:
Answer:
n = -4
Step-by-step explanation:
You must write and solve a symbolic equation.
n - 6 = 5(n + 2), or
n - 6 = 5n + 10
Combining like terms, we get:
-16 = 4n,
and so n = -4


Multiply both sides of second equation by 20 to get

Subtract that from first equation to get

Divide both sides by 0.7 to get

, so about $428.57 was spent in store. This leaves

that was spent online