SOLUTION: Three sides of a triangle are represented by x, x+3 and x+5. The perimeter of the triangle is 35 units. Solve for x.

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Question 692997: Three sides of a triangle are represented by x, x+3 and x+5. The perimeter of the triangle is 35 units. Solve for x.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
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%2Bx%2B3%2Bx%2B5=35 Start with the given equation.


3x%2B8=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=%2827%29%2F%283%29 Divide both sides by 3 to isolate x.


x=9 Reduce.


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Answer:

So the solution is x=9