Rozwiąż nierówności:
a) 3(x-7) ≥ 4x-5
b) ⅓x-4 > x-10
a)
3(x - 7) > = 4x - 5
3x - 21 >= 4x - 5
3x - 4x >= -5 +21
-x >= 16 / *(-1)
x <= - 16
===========
b)
(1/3) x - 4 > x - 10 / * 3
x - 12 > 3x - 30
x - 3x > 12 - 30
-2x > - 18 / : (-2)
x < 9
==============
Odp:
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a)
3(x - 7) > = 4x - 5
3x - 21 >= 4x - 5
3x - 4x >= -5 +21
-x >= 16 / *(-1)
x <= - 16
===========
b)
(1/3) x - 4 > x - 10 / * 3
x - 12 > 3x - 30
x - 3x > 12 - 30
-2x > - 18 / : (-2)
x < 9
==============
a)
Odp:
b)
Odp: