Question 321682
Three possible values:
{{{x+5=4}}}
{{{x=-1}}}
Not allowed since one side would be {{{2(-1)-1=-3}}}
{{{2x-1=4}}}
{{{2x=5}}}
{{{highlight(x=5/2)}}}
.
.
.
{{{x+5=2x-1}}}
{{{highlight(x=6)}}}
.
.
.
In fact, only two value of x make the triangle isoceles.