Răspuns :
Răspuns:
-5x+1=1
-5x=1-1
-5x= 0=> x =multimea vida
3+2x=-7
2x=-7-3
2x=-10|÷2
x=-5
5+2x=-11
2x=-11-5
2x=-16|÷2
x=-8
6+3x=-54
3x=-54-6
3x=-60|÷3
x=-20
1+9x=-89
9x=-89-1
9x=-90|÷9
x=-9
1-2x=-7
2x=-7-1
2x=-8|÷2
x=-4
5-4x=-3
-4x=-3-5
-4x=-8|÷(-4)
x=2
1-6x=-11
-6x=-11-1
-6x=-12|÷(-6)
x=2
1-5x=-19
-5x=-19-1
-5x=-20|÷(-5)
x=4