<PRE><B>Question 684191</B>
{{{(7-2)/(-2-x) = -1/3}}}
...
{{{5/(-2-x) = -1/3}}}
Multiply both sides by (-2-x)
5 = {{{(-1/3)(-2-x)}}}
distribute the {{{-1/3}}}
5 = {{{(-1/3)(-2) - (-1/3)(x)}}}
...
5 = {{{2/3 + x/3}}}
multiply both sides by 3
15 = 2 + x
isolate the x variable
{{{highlight_green(x = 13)}}}
...
check
{{{(7-2)/(-2-13) = 5/-15 = -1/3}}} correct!
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