Răspuns :
Răspuns:
5x-11=x-3
5x-x=11-3
4x=8
x=8:4
x=2
3x-5+4x=18
3x+4x=18+5
7x=23
x=23:7
x=3.28
8x+20=3x
8x-3x=-20
5x=-20
x=-20:5
x=-4
Explicație pas cu pas:
5x-11=x-3
5x-x=-3+11
4x=8
4:4
x=2
3x-5+4x=18
7x-5=18
7x=18+5
7x=23
x=23/7
8x+20=3x
8x-3x=-20
5x=-20
x=-4
5x-x=-3+11
4x=8
4:4
x=2
3x-5+4x=18
7x-5=18
7x=18+5
7x=23
x=23/7
8x+20=3x
8x-3x=-20
5x=-20
x=-4