Решите неравенство 3-х ≥ 3х+5.
1) (-∞; -0,5]
2) [-0,5; +∞)
3) (-∞; -2)
4) [-2; +∞)
1) (-∞; -0,5]
2) [-0,5; +∞)
3) (-∞; -2)
4) [-2; +∞)
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3-x ≥ 3x+5-3x-x ≥ 5-3
-4x ≥ 2 |:(-4)
x ≤ -0,5
Ответ: 1) (-∞; -0,5]