Rozwiąż Nierówności .
a) 2(x+3)-5>-2x-7
b)-2(x-1)+5x>7x+12
c)1/3x+1>-x+2
d)0,7x-2<0,9x-0,1
e)-x+3>(3x-2)
f)0,1(2x-3)<-0,6x+1
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a) 2(x+3)-5>-2x-7
2x + 6 - 5 > -2x - 7
2x + 2x > -7 -6 +5
4x > -8 /:4
x > - 2
b)-2(x-1)+5x>7x+12
-2x + 2 + 5x > 7x + 12
-4x > 10 /: (-4)
x < 2,5
c)1/3x+1>-x+2 / * 3
x + 3 > -3x+6
4x > 3 /:4
x > 0,75
d)0,7x-2 < 0,9x-0,1
-0,2x < 1,9 /: (-0,2)
x > -9,5
e)-x+3>(3x-2)
-x + 3 > 3x - 2
-4x > -5 /:(-4)
x < 1,25
f)0,1(2x-3) < -0,6x+1
0,2x - 0,3 < - 0,6x + 1
0,8x < 1,3 /: 0,8
x < 1,625