The two pieces are continuous for every 
So, our only concern is to make sure that the pieces "glue" continuously at x=7.
To ensure this, we evaluate both pieces at x=7, and impose that the two values are equal.
The first piece evaluates to
The second piece evaluates to
So, we want
We move all terms involving c to the left hand side, and all the numerical constants on the right hand side:
Three brass pennies is the short story and the
setting of this story is Ancient Chinese city.
<span>The theme of the story is about desires and
happiness. It is not necessary that what we desire bring happiness in our
lives. Sometimes we think and desire for something that may be it brings
happiness but instead of happiness it causes trouble.</span>
I believe it is C; 4n + 6 = 2n - 9
the product of 4 and a number
> 4n
increased by 6
> 4n + 6
is 9 less than twice a number
> 4n + 6 = 2n - 9
C......................................
