Question Grade: Education Subject: mathematiques Résous les équations suivantes : a) 3x +7 =5x + 3 b) 7x +9 =8x +10 c) 5x -8= 7-2x Asked by: USER8552 103 Viewed 103 Answers Answer (103) USER8172 Best Answer (194) a) 3x+7=5x+3 alors 3x-5x=3-7-2 x=-4x=-4/-2x=2b)7x+9=8x+10 alors 7x-8x=10-9-x=1x=1c) 5x-8=7-2x alors 5x+2x=7+87x=15x=15/7 View other answers (103) Related Articles (x-47)×2=a+13 va rog repedeee 2 September 2025 29 views 29 comments Cuvânt opus pentru : umil ? 2 September 2025 29 views 29 comments Rares are cu 5 masinute mai mult decat o treime din masinutele pe care le are Eric.Cate masinute are fiecare baiat ,daca impreuna au 33 de masinute. 2 September 2025 149 views 149 comments dacă media aritmetică a trei numere este 1,5 atunci suma lor este 2 September 2025 66 views 66 comments Media aritmetică a doua numere este 4,5 suma numerelor este? 2 September 2025 61 views 61 comments Rezualtatul exercitiului: 63: [36: 4-2x(2+1) ] Va ROG ajutati-ma! 2 September 2025 73 views 73 comments Mihai are de 3 ori mai multe masinute decat Alex. Daca Mihai ii da lui Alex 15, ei vor avea acelasi numar de masinute. Cate masinute are fiecare baiat ? 2 September 2025 152 views 152 comments Diferenta a doua numere este 64 218. Raportul dintre ele 2 pe 6. Afla cele doua numere. 2 September 2025 88 views 88 comments determinati domeniul fiecarei inecuatii : a) 3x-7<-9 , x € Z b) x+1 mai mare sau egal decat -5 , x € Zc) -2x mai mic sau egal decat -10, x€Zd)x+3>-1 , x€{ -6;-5;-4;-3;-2;-1} 2 September 2025 160 views 199 comments Tentukan turunan dari f ( x ) = 3x4-4x2+7 2 September 2025 41 views 41 comments What distinguishes a successful food blogger in 2023 from others? 29 Agustus 2025 65 views 65 comments What is the control of gene expression which occurs in the nucleus and involves mrna processing? 26 Agustus 2025 96 views 96 comments 6 grupuri de cuvinte sinonime cu a fugi 27 Agustus 2025 39 views 39 comments aflati douo numere consecutive a carora produs este 702 si 5256 28 Agustus 2025 76 views 76 comments este reprezentat un cub ABCDEFGH cu latura de 3 cm . volumul cubului este egal cu? rezolvare 29 Agustus 2025 98 views 98 comments