Răspuns :
Răspuns:
3x+4x=35 =>7x=35 =>x=35:7 =>=5
4x=36 =>x=36:4 =>x=9
2x-x=8-3 =>x=5
3x-x=12+2 =>2x=14 =>x=7
Răspuns:
3x+4x=35
7x=35
x=5
5x+x-2x=36
4x=36
x=9
2x+3=x+8
2x-x=8-3
x=5
3x-2=x+12
3x-x=12+2
2x=14
x=7
Răspuns:
3x+4x=35 =>7x=35 =>x=35:7 =>=5
4x=36 =>x=36:4 =>x=9
2x-x=8-3 =>x=5
3x-x=12+2 =>2x=14 =>x=7
Răspuns:
3x+4x=35
7x=35
x=5
5x+x-2x=36
4x=36
x=9
2x+3=x+8
2x-x=8-3
x=5
3x-2=x+12
3x-x=12+2
2x=14
x=7