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svp [43]
3 years ago
13

3(x + 4)-2 = 2x + 1 not understanding

Mathematics
2 answers:
Mrrafil [7]3 years ago
7 0
First you must distribute, multiply 3 by X and get 3x, then multiply 3 by 4 and get 12. Now you have 3x + 12 - 2x + 1, now combine all of the like terms, you should get 1x +13 then subtract 13 by both sides to get your answer
lord [1]3 years ago
5 0

3(x + 4) - 2 = 2x + 1 \\ \Leftrightarrow 3x + 12 - 2 - 2x - 1 = 0 \\ \Leftrightarrow x + 9 = 0\Leftrightarrow x =  - 9

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