SOLUTION: the perimeter of a triangle is 51m.the second is twice as long as the first side.the third side is 3m less than three times the first. what are the lengths of the sides of the tria

Question 1008291: the perimeter of a triangle is 51m.the second is twice as long as the first side.the third side is 3m less than three times the first. what are the lengths of the sides of the triangle
Answer by ikleyn(53937) (Show Source): You can put this solution on YOUR website!
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The perimeter of a triangle is 51 m. The second is twice as long as the first side.the third side
is 3 m less than three times the first. What are the lengths of the sides of the triangle?
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Let x be the length of the first side of the triangle in meters.
Then the second size is 2x m long, and the third size is 3x - 3 meters long.

The perimeter is x + 2x + (3x-3).

An equation is 

x + 2x + 3x - 3 = 51.

Solve it yourself please.

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