This is the symmetric property, for you divide 9 to both sides to get x, instead of adding (addition property of equality)
So symmetric property should be your answer
Hope this helps
Answer:

Step-by-step explanation:
there are a total of 20 marbles and the chance that it is blue is 8/20 so multy that by itself and the answer is 4/25
Answer:
7x^2 -x -5
Step-by-step explanation:
(8x^2 - 2x) - (x^2 - x + 5)
Distribute the minus sign
(8x^2 - 2x) - x^2 + x - 5
Combine like terms
7x^2 -x -5
Answer:
1/625
Step-by-step explanation:
Exponent Rule: 
Exponent Rule: 
5⁻⁸ · 5⁴ = -8 + 4 = -4
5⁻⁴
1/5⁴
1/625
Interchange the x and y and solve for the resulting y.
x = 4y^2 - 2
(x + 2) = 4y^2
(x + 2)/4 = y^2
+/- sqrt(x + 2)/2 = y
The graph of these two is below.
The original is in red
The inverse is in blue and green