Bonjour
12x+-39=-94
12x = - 94 + 39
12x = - 55
x = - 55/12
-44x+(-48)=72
- 44x = 72 + 48
- 44x = 120
x = - 120/44
x = - 30/11
7x+50=51
7x = 51 - 50
7x = 1
x = 1/7
-22x+(-45)=-60
- 22x = - 60 + 45
- 22x = - 25
x = 25/22
47x+(-50)=-33
47x = - 33 + 50
47x = 23
x = 23/47
-33x+48=-62
- 33x = - 62 - 48
- 33x = - 110
x = 110/33
-35x+(-36)=68
- 35x = 68 + 36
- 35x = 104
x = - 104/35
2x+(-40)=87
2x = 87 + 40
2x = 127
x = 127/2
-11x+(-49)=86
- 11x = 86 + 49
- 11x = 135
x = - 135/11
-9x+(-32)=46
- 9x = 46 + 32
- 9x = 78
x = - 78/9
x = - 26/3.