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Isabella Whitten ∙
2+3n+2+9n would equal 4+12n after adding all like numbers.
schockemma ∙
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3n+2+3n+2=6n+4
3n x 3n = 9n if 9n = 36 then n = 36/9 = 4
s = 9n - 18.
9n+6-3n
-5 plus 9n plus 6 is 1 plus 9n.