Question 1051228
Hard to do because it depends on the value of x. 
You can get clues because you know that the side measure has to be positive so you can interpret some limits. 
It does get difficult when you get values like, 
{{{x+25}}},{{{2x+20}}} and {{{3x-17}}}.
Maybe graphing might help.
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*[illustration dfc1.JPG].
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