ecuaciones....ayúdenme pls
2.x+x-5=7
6.x-3.x+2=17
3.x+2.x-1=-11
7.x-3.x+6=-18
6.x+5.x-8.x-5=13
7.x-5.x+2.x+3=-21
x+x+x-2=-23
12.x+15.x-17.x+9=-11​