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23-10-2020
Mathematics

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The triangle below has a perimeter of 51. Solve for x.

The triangle below has a perimeter of 51 Solve for x class=

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jimrgrant1 jimrgrant1

23-10-2020

Answer:

x = 6

Step-by-step explanation:

The perimeter is the sum of the 3 sides of the triangle. Sum the 3 sides and equate to 51, that is

15 + 5x - 6 + 2x = 51

7x + 9 = 51 ( subtract 9 from both sides )

7x = 42 ( divide both sides by 7 )

x = 6

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