If 8 Superscript y Baseline = 16 Superscript y + 2, what is the value of y?

It sounds like you're given

and are asked to solve for y.

Notice that 8 = 2³ and 16 = 2⁴, so you can rewrite both sides with a common base:

The bases match, so the exponents must be equal:

3y = 4y + 8

Solve for y :

3y - 4y = 8

-y = 8

y = -8

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.  

days of the week

step-by-step explanation:

javier earned more money then kyle, so that won't always be a constant term, but the days of the week do not change so that term is always constant.

edit: i meant