Question 161332
{{{-7 <= -2x+3 <= 9}}}
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You can look at this as two separate equations:
{{{-7 <= -2x+3}}}
{{{-2x+3 <= 9}}}
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Solving the first one:
{{{-7 <= -2x+3}}}
{{{-10 <= -2x}}}
{{{5 >= x}}}
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Solving the second one:
{{{-2x+3 <= 9}}}
{{{-2x <= 6}}}
{{{x >= -3}}}
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Putting all back together:
{{{-3 <= x <= 5}}}