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2x+6-5>-2x-7
2x+1>-2x-7
4x>-6
x>-1½
b)-2(x-1) +5x>7x+12
-2x+2+5x>7x+12
3x+2>7x+12
-4x>10
x<-2½
c)⅓x+1>-x+2
1⅓x>1
x>¾
d)0.7x-2≤0.9x-0,1
-0,2x≤ 1,9
x≥ -9,5
e)-x+3≥-(3x-2)
-x+3≥ -3x+2
2x≥ -1
x≥-½
f)0.1(2x-3)<-0.6x+1
0,2x-0,3<-0,6x+1
0,8x<1,3
x<1,625
g)2(x-1)<3(x+1)-x
2x-2<3x+3-x
2x-2<2x+3
-2<3
sprzeczne
h)3(x+2)-2(3-x)≥8
3x+6-6+2x≥8
5x≥8
x≥1⅜
i)2(3x-5)+10>3(2x-1)
6x-10+10>6x-3
6x>6x-3
0>-3
sprzeczne
j)10(x-2)-3(x+2)≥7x-20
10x-20-3x-6≥7x-20
7x-26≥7x-20
-26≥-20
sprzeczne
k)7(x-1)-3(2x+3)≤2(x+2)-22
7x-7-6x-9≤2x+4-22
x-16≤2x-18
-x≤ -2
x≥2
l)12(x-0.5)>6(2x+1)+5
12x-6>12x+6+5
12x-6>12x+11
-6>11
sprzeczne
ł)18(x+1)-10(0.5x+2)>5x-2
18x+18-5x-20>5x-2
13x-2>5x-2
8x>0
x>0