Answer:Yes it is proportional
9 because they’re are the same distance away from 0 on the number just 9 is on the right side of zero and -9 is on the left side of zero
(8+2x) -> If 8 is added to twice a number (x)
5*(8+2x) -> and this sum is multiplied by 5
5*(8+2x)=x*(-28)+2 -><span>the result is the same as if the number is multiplied by negative −28 and 2 is added to the product.
Simplifying the equations on both sides would give
40+10x=-28x+2 transpose -28 to the left side and 40 to the right side
28x+10x=2-40
38x=-38
x=-1</span>
Answer:
m = 9
Step-by-step explanation:
Using the rules of exponents
= 
× 
⇔ 
= 
Then
× 
= 243 ← express all values to base 3
× 
= 
× 
=
× =
=
Since bases on both sides are equal, both 3 , then equate exponents
- 3m - 4 = 5 ( add 4 to both sides )
- 3m = 9 ( divide both sides by - 3 )
m = - 3
