3 years ago

42 = 4n -7(n-9) solve it

2 answers:

4 0

42=4n-7n+63
42=-3n+63
-21=-3n
N=7

3 0

I hope this helps you

42=4n-7n-7. (-9)

42=-3n+63

-3n=-21

n=7

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