7(2x-1)- 3(4x -1) =5 (3x+2) -1
va rogg dau coroana
![72x1 34x 1 5 3x2 1va Rogg Dau Coroana class=](https://ro-static.z-dn.net/files/dd9/b50dc5b1683e19e935dd0fcbfceff229.jpg)
Răspuns:
14x-7-12x+3=15x+10-1
2x-7+3=15x+9
2x-4=15x+9
15x-2x=9+4
13x=13
Explicație pas cu pas:
sper ca te am ajutat