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Q: What property is n plus 72 equals 72?

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no

Commutative

The value of n is 3, by the commutative property.

No. If your trying to find n, then you subtract four from each side. n = 10 That would be subtraction property of equality.

9n+9=81 9n=72 n=8

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no

Commutative

The value of n is 3, by the commutative property.

No property. Unless n is known there is no property exhibited.

No. If your trying to find n, then you subtract four from each side. n = 10 That would be subtraction property of equality.

It is the additive identity property of zero. (n+0=n)

9n+9=81 9n=72 n=8

8n = 72 n = 72 / 8 n = 9

5

N=72

n/18 = -72 we can solve for n by multiplying both sides by 18 which shows n = (-72)(18) = -1296

Multiplicative identity property.