0.15x + 100
x representing amount of text messages sent or received
I may not be correct, but I love fractions, and from what I know.....1/4, hope this helps! ( :
They are the same, because there's an invisible 0 next to 0.6.....
Expand
x²+6x-27=-27
add 27 both sides
x²+6x=0
factor
x(x+6)=0
set to zero
x=0
x+6=0
x=-6
x=0 or -6
answer is 0 since -6 is not listed