3n+5n=8n
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(3n+2)(n+1)
5n + 12 = 3n Try to get all expressions with n on the left side 5n + 12 - 3n = 3n - 3n 2n + 12 = 0 Try to get rid of 12 on the left side 2n + 12 - 12 = -12 2n = -12 n = -12/2 = -6
7n - 2 + 3n + 4 = 7n + 3n - 2 + 4 = 10n + 2 which can be simplified to 2(5n +1)
(4n - 1)(3n + 2)
first combine like terms and 5n+7=-41 add -7 to both sides 5n=-48 n=-48/5