Solve -7<3x+2<5 (Multiple choice, picture added)

Claude asked Jul 27, 2022

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35 votes

Solve -7<3x+2<5
(Multiple choice, picture added)

Claude asked Jul 27, 2022

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19 votes

$\\ \sf\longmapsto -7<3x+2\leqslant5$

$\\ \sf\longmapsto -7-2<3x+2-2\leqslant 5-2$

$\\ \sf\longmapsto -9<3x\leqslant 3$

$\\ \sf\longmapsto (-9)/(3)<(3x)/(3)\leqslant (3)/(3)$

$\\ \sf\longmapsto -3<x\leqslant 1$

Option A is correct

Zeppaman answered Aug 2, 2022

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