Question 692997
Add up the sides and set them equal to 35. This is because the three sides add up to 35 (the perimeter). Then solve for x.


{{{x+x+3+x+5=35}}} Start with the given equation.



{{{3x+8=35}}} Combine like terms on the left side.



{{{3x=35-8}}} Subtract {{{8}}} from both sides.



{{{3x=27}}} Combine like terms on the right side.



{{{x=(27)/(3)}}} Divide both sides by {{{3}}} to isolate {{{x}}}.



{{{x=9}}} Reduce.



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Answer:


So the solution is {{{x=9}}}