Subtract three every time
-5+7=2, and -2+7=5 so now it would be 2<5! :-)
Answer:

Step-by-step explanation:
We have that
, we want to find
.
We can rewrite this function with positive index to get:

We need to substitute
into the given function to get:

This implies that:

In scientific notation:

2x+4y=16
x-7=-4y
4y=16-2x
<span>4y=16-2(-4y+7)
4y=16+8y-14
-4y=2
-4y/-4=2/-4
<u>y=-0,5</u>
2x=16-4(-0,5)
2x=16+2
2x/2=18/2
<u>x=9
</u>
C</span>