Y = -x + 4.....so sub in -x + 4 in for y in the other equation
x + 2y = -8
x + 2(-x + 4) = -8
x - 2x + 8 = -8
x - 2x = -8 - 8
-x = -16
x = 16
y = -x + 4
y = -16 + 4
y = - 12
one solution (16,-12)
We will need a little more to answer on that that please.
Whats the question here if your wondering how many shells she finds in a certain amout of days just get a calculator and keep adding 12 over and over again
b is just a variable, which is just a term for a value that could change. It could be anything
