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you replace the "n" with ahundred e.g... if it's 2n+1, you will go 2x100+ 1 which is 201
2n+3. If 5 is the first term, then it is 2n + 3 (2×1 = 2 + 3 = 5 and 2×2 + 3 = 7)
The nth term is: 5-2n
2n+4/2 term 1 = 3 term 2 = 4 term 3 = 5 term 4 = 6
5-2n=3 -2n=3-5 -2n=-2 n=1