Resolva as inequações.
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Soluções para a tarefa
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a) b) 10x - 1 4 ( x + 1 )
7x – 7 < 5 – 2x 10x – 1 < 4x +1
7x + 2x < 5 + 7 10x - 4x < +1 + 1
9x < 12 6x < 2
x < x <
S = x S= c) 6x – 3 ( 4 – 2x ) > 0 d) 3 ( x – 2 ) < 5x – 8
6x - 12 + 6x > 0 3x – 6 < 5x – 8
6x + 6x > 0 + 12 3x – 5x < -8 + 6
12x > 12 -2x < -2 . (-1)
x > 2x < 2
x > 1 S= x <
x < 1 S=
e) 2 ( x – 3 ) – 3 ( x + 1 ) < 36 f) 3 ( x – 1 ) – 2 ( x + 1 )> - 9
2x – 6 – 3x + 3 < 36 3x - 3 – 2x + 2 > - 9
2x – 3x < 36 - 3 + 6 3x – 2x > -9 + 3 - 2
-1x < 39 . (-1) 1x > - 8
1x < -39 x >
x < x > -8 S=
x < -39 S= espero ter ajudado
Anexos:
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