Question 1177785


descriebe solving double inequality

{{{37>=-3x+7>=-2}}}............to solve it, we need to isolate {{{x}}}

{{{37-7>=-3x+7-7>=-2-7}}}............add {{{-7}}} to eliminate {{{7}}}

{{{30>=-3x>=-9}}}..........divide by {{{3}}}

{{{30/3>=-3x/3>=-9/3}}}

{{{10>=-x>=-3}}}.........................divide by{{{ -1}}} to eliminate negative sign of {{{x}}}

{{{10/-1>=-x/-1>=-3/-1}}}........in this case >= will change to <=

{{{-10<=x<=3}}}

solution set is

[{{{-10}}},{{{3}}}]

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