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Additive indentity

n = 1
a variable is always a number itself remember 7+n
5+2 = 7
I don’t know what your asking
The factors of 7 are 7, 1.
The factors of 12 are 12, 6, 4, 3, 2, 1.
12*7=84
Answer:it is only (x,y) -> (3x, 3y)
Step-by-step explanation: I just took the test and got it right,, hope it helped :)