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daionagreene3486
03.11.2020 •
Mathematics
I need help with 14. you have to simplify the expression and then your answer will reveal a letter on the right hand side
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Ответ:
3x+21 (H)
Step-by-step explanation:
9-3(3x-4)+12x
9-(9x-12)+12x
9-9x+12+12x
(9+12)+(-9x+12x)
21+3x or 3x+21
Ответ: