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2n+3n+7=-41
First you add 4 and 3 then you get 7 so you write the problem like this 3n + 7 and that is your answer
3n+7
3n + 4n = 42 7n = 42 n = 42/7 n = 6
3n+5=2n+7 subtract 2n on both sides. n+5=7 subtract 5 to the other side. n=2 the answer to n is 2. Hoped that helped. (: