Question

An equilateral triangle has a perimeter of 3x+9. what is the length of each side of the triangle

Answer 1

The answer is: " x + 3 " .
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Step-by-step explanation:
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`(3x+9)/(3)` ;

=
`(3x)/(3)` +
`(9)/(3)` ;

= x + 3 .
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Note: An equilateral triangle has 3 SIDES THAT ARE EQUAL IN LENGTH.
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The perimeter is the sum of the total length of all three (3) sides. So, to find the length of each side {Note: Each side has an equal length}; we divide the given perimeter, by "3"}.

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The answer is: " x + 3 " .
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To check our answer:

3(x+3) =? 3x + 9 ??

Using the distributive property of multiplication:
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(3*x) + (3*3) =? 3x + 9?

3x + 9 =? 3x + 9 ? Yes!
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