<PRE><B>Question 385259</B>
{{{3x-7=2x+1}}} Start with the given equation.



{{{3*(5)-7=2*(5)+1}}} Plug in {{{x=5}}}.



{{{8=2*(5)+1}}} Evaluate and simplify the left side.



{{{8=11}}} Evaluate and simplify the right side.



Since the equation is &lt;font size=&quot;4&quot;&gt;&lt;b&gt;NOT&lt;/b&gt;&lt;/font&gt; true, this means that {{{x=5}}} is &lt;font size=&quot;4&quot;&gt;&lt;b&gt;NOT&lt;/b&gt;&lt;/font&gt; a solution.



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Jim</PRE>