Răspuns :
3(2x-4)+x=37
6x-12+x=37
6x+x=37+12
7x=49
x=49:7
x=7
8x+5-4x=41
8x-4x=41-5
4x=36
x=36:4
x=9
5(x+3)+2(x+3)=56
5x+15+2x+6=56
5x+2x=56-15-6
7x=35
x=35:7
x=5
6x-12+x=37
6x+x=37+12
7x=49
x=49:7
x=7
8x+5-4x=41
8x-4x=41-5
4x=36
x=36:4
x=9
5(x+3)+2(x+3)=56
5x+15+2x+6=56
5x+2x=56-15-6
7x=35
x=35:7
x=5
2)... 8x+5-4x=41 => 4x = 41-5 ... 4x = 36 deci x=9 ;
3)... 5(x+3)+2(x+3)=56 <=> 7(x+3) = 56 => x+3 = 8 deci x=5 ;
Obs.
La prima nu ai inchis paranteza rotunda ... nu pot rezolva la nimereala !
3)... 5(x+3)+2(x+3)=56 <=> 7(x+3) = 56 => x+3 = 8 deci x=5 ;
Obs.
La prima nu ai inchis paranteza rotunda ... nu pot rezolva la nimereala !