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Brums [2.3K]
2 years ago
14

Plz answer both and i need help

Mathematics
1 answer:
Whitepunk [10]2 years ago
6 0

Answer:

1 is commutative property

2 is associative property

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olasank [31]
X^2/(x- 9 = 81/(x - 9)
This is the equation for which you want the solution.
Multiplying both sides of the equation by (x - 9) we get
x^2(x - 9)/(x - 9) = 81(x - 9)/(x - 9)
So the (x - 9) goes out from both the denominator and the numerator and then the simplified equation becomes
x^2 = 81
x ^2 = (9)^2
x = 9
So the value of the unknown variable x comes out to be 9.
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