Răspuns:
1. -3x+15=0
-3x=15
×=15:(-3)
×=-5
2.3=-2x+7
-2x=7-3
-2x=4
x=-2
3. 22x+44=0
22x=44
x=44:22
x=2
4.11x+29=95
11x=95-29
11x= 66
x=6
5.-18+6x=6
6x=-18-6
6x=-24
x=-4
6.-x+7=-23
x=-23-7
x=-30
7.aici nu inteleg.Poate e 4(x-7)=0
4x-28=0
4x=-28
x=-28:4
x=-7
8.-3(x+6)=6
-3x+(-18)=6
-3x-18=6
3x=-18-6
3x=-24
Sper ca te am ajuat.Daca am gresit,iarta ma!Succes in continuare!!!
x=-8