Answer:
-9
Step-by-step explanation:
+49/-7=-7
-2-7=-9
Ok I will let you know tomorrow afternoon when I get to the school
I’m pretty sure that the correct equation, and the value of x is
Is 7/8= x/224; x = 196 pounds
N> 8
Any value greater than 8 will work for n you choose
And this is why
48 < 6n
same thing as
6n > 48
divide by 6 on both sides
And that leaves you with
n>8
Examples which would work
n=9, n=120, n=756, n = 12

We have that

, which means

reduces to

when

, or reduces to

when

.
So we can expand the summation as

Notice that the 10 contributes a total of 30 from the first sum, and -30 from the second sum, so those terms cancel, leaving us with