Answer :

4n-40=7(-2n+2)

4n-40=-14n+14

subtract -4n from both sides

-40 = -18n +14

subtract -14 from both sides

-54=-18n

divide both sides by -18


3 = n
4n-40=-14n+14 4n+14n=14+40 18n=54 N=3

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