3x-2*(3x+2)< =4-xСРОЧНО!! . Created by dasaponomarenko885. matematika-ru

3x-2*(3x+2)< =4-xСРОЧНО!! ...

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Ответ:

$3x-2\cdot (3x+2)\leq 4-x\\\\3x-6x-4\leq 4-x\\\\-3x+x\leq 4+4\\\\-2x\leq 8\ \Big|\cdot (-1)\\\\2x\geq -8\\\\x\geq -4\\\\x\in [\, -4\ ;\, +\infty \, )$

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dasaponomarenko885 Спасибо большое

kekiki44

Ответ:

$3x - 6x - 4 \leqslant 4 - x$

$- 3x - 4 \leqslant 4 - x$

$- 3x + x - 4 \leqslant 4$

$- 3x + x \leqslant 4 + 4$

$- 2x \leqslant 4 + 4$

$- 2x \leqslant 8$

$x \geqslant - 4$

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dasaponomarenko885 спасибо

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