Let's call that the Multiplicative Identity Property.
1 is the identity element for multiplication. Those are just fancy words for the obvious property that anything times 1 is itself.
It is Consistent sorry if wrong
Answer:
NS= 20
Step-by-step explanation:
4x / 3x-5 (2/1)
4x / 6x-10
-6x -6x
-2x / -10
X / 5
X=5
NS= 4x
NS= 4(5)
NS= 20
Answer: -3a^2 + 11a
Step-by-step explanation:
4a - (a x 3a) + 7a - Multiply first to get 4a - 3a^2 + 7a
4a - 3a^2 + 7a - Add like terms (a terms) to get -3a^2 + 11a
So the answer in -3a^2 + 11a
It looks like it should be the first one and the third one