Explain how you can use integers chips to determine the sum of 4+(-8)

 You can use chips to determine the sum by subtracting them.

For example, the -8 would represent 8 chips with a negative sign on the and the 4 would have 4 chips with a postive sign on them.Then you take away or cancel out each number leaving you with 4 negative chips.

answer: it is 1: 47 pm

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation