Rozwiąz nierówności.
c ) 2(x - 6 ) < 3-x
d ) (x- 3) - (2-x) < 8
e ) o,3x - 1 > -1,1 + x
Z góry dzięki .
c )
2(x - 6 ) < 3-x
2x - 12 < 3 - x
2x + x < 3 + 12
3x < 15
x < 15/3
x < 5
d )
(x- 3) - (2-x) < 8
x - 3 - 2 + x < 8
2x < 8 + 3 + 2
2x < 13
x < 13/2
x < 6 i 1/2 e )
o,3x - 1 > -1,1 + x
0,3x - x > - 1,1 + 1
- 0,7x > - 0,1
0,7x < 0,1
x < 0,1/0,7
x < 1/7
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c )
2(x - 6 ) < 3-x
2x - 12 < 3 - x
2x + x < 3 + 12
3x < 15
x < 15/3
x < 5
d )
(x- 3) - (2-x) < 8
x - 3 - 2 + x < 8
2x < 8 + 3 + 2
2x < 13
x < 13/2
x < 6 i 1/2
e )
o,3x - 1 > -1,1 + x
0,3x - x > - 1,1 + 1
- 0,7x > - 0,1
0,7x < 0,1
x < 0,1/0,7
x < 1/7