Răspuns :
5x<10
x>10:5
x>2
3x<9
x>9:,3
x>3
7x+1<50
7x>50-1
7x>49
x>49:7
x>7
25x+2<27
25x>27-2
25x>25
x>25:25
x=1
12x-4<20
12x>20+4
12x>24
x>24:12
x>2
10x+1>21
10x<21-1
10x<20
x<20:10
x<2
si tot asa sper ca ai inteles ceva
x>10:5
x>2
3x<9
x>9:,3
x>3
7x+1<50
7x>50-1
7x>49
x>49:7
x>7
25x+2<27
25x>27-2
25x>25
x>25:25
x=1
12x-4<20
12x>20+4
12x>24
x>24:12
x>2
10x+1>21
10x<21-1
10x<20
x<20:10
x<2
si tot asa sper ca ai inteles ceva