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2n+4/2 term 1 = 3 term 2 = 4 term 3 = 5 term 4 = 6
3 + 3n = 9 + 2n + 4n n = -2
The question seems to be incorrect because, if the definition is 2n + 3 then the third tern should be 9 and the fourth one 11. In that case, t(6) = 2*6 + 3 = 12+3 = 15
5n + 1 = 10 + 2n5n - 2n + 1 - 1 = 10 - 1 + 2n - 2n3n = 93n/3 = 9/3n = 3
3n + 9 = 3(n + 3)