Răspuns:
5-|2x-1|=8
-|2x-1|=8-5=3
|2x-1|=-3 x=mulțimea vidă
Explicație pas cu pas:
|2x-11|-7=10
|2x-11|=10+7=17
|2x-11|=17 2x-11=17 2x=17+11=28/:2 x=14
2x-11=-17 2x=-17+11 2x=-6 /:2 x=-3
x={-3,14}
|2X+7|-13=12 |2X+7|=12+13=25 |2X+7|=-+25
2X+7=25 /-7 2X=18/:2 X=9
2X+7=-25 /-7 2X=-25-7=-32/2 X=-16
X={-16,9}
