Răspuns:
-7+x=8
x=15
2x+43=-53
2x=-96
x=-48
-5(7-x)=-65
-35+5x=-65
5x=-30
x=-6
-27÷(-4+x)=3
-27/(-4+x)=3
-27=-12+3x
3x=-15
x=-5
