Answer:
He should have found 8 as the exponent, not –8.
Step-by-step explanation:
im doing a unit test
The value of b is -21. To find the slope of the line use the slope formula:

. The slope is -4. Then you plug in one coordinate to find the value of b.
Step-by-step explanation:
use this formula: x+6 = 2x+1
step-by-step:
x+6 = 2x+1
<u> </u><u>-1</u> <u>-1</u>
x+5 = 2x
<u>-</u><u>x</u> <u>-x</u>
5 = x
there you go
This is just simplification. If you havent done algebra before it may be difficult but you probably have. Ok we need to get x on its on so that we know what x is. So to make X on its own, we need to get rid of -7. So we plus 7 on both sides.
So we get:
x > 17