$\"\"$ $\"\"$ $\"\"$

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Given perimeter of Triangle is $\"\"$ .

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Use the formula for the perimeter of the Triangle.

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The perimeter P of a Triangle is given by the formula $\"\"$ .

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Where a, b, c are called as sides of the Triangle.

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$\"triangle$ $\"\"$

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The values of a,b,c,p are 14 $\"\"$ 2x,2x+1,3x $\"\"$ 1,26 are substitute in $\"\"$

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$\"\"$ = $\"\"$

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Rearrange the terms using commutative property of addition: $\"\"$ .

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$\"\"$ = $\"\"$

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$\"\"$ = $\"\"$ (Add: $\"\"$ )

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$\"\"$ (Subtract: $\"\"$ ) $\"\"$

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Apply subtraction property of equality: Subtract 14 from each side.

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$\"\"$

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$\"\"$ (Subtract: $\"\"$ )

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Apply divison property of equality: Divide each side by 3.

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$\"\"$

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$\"\"$ (Cancel common terms) $\"\"$

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The value of $\"\"$ is substitute in 14 $\"\"$ 2x,2x+1,3x $\"\"$ 1.

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14 $\"\"$ 2x $\"\"$ $\"\"$ .

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2x+1 $\"\"$ $\"\"$ .

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3x $\"\"$ 1 $\"\"$ $\"\"$ . $\"\"$

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The value of $\"\"$ and sides of the Triangle are 6,9,11.