Question

4) 4|x| - 7 = - 2|x| + 5​

Answer 1

Ответ:

решение смотри на фотографии

Answer 2

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$\displaystyle \bf 4\Big|x\Big|-7=-2\Big|x\Big|+5\\\\\\4\Big|x\Big|+2\Big|x\Big|=5+7\\\\\\6\Big|x\Big|=12\\\\\\\Big|x\Big|=\frac{12}{6} \\\\\\\Big|x\Big| =2\\\\\\\\\boxed{\Big \displaystyle \bf x=-2 \ ; \ \ \ x=2}$