4. The side lengths of a triangle are x, x – 9, and 2x + 3. If the perimeter of the triangle is 46 cm, what is the value of x? HELPPP

asked Mar 15, 2021 32.8k views

5 votes

4. The side lengths of a triangle are x, x – 9, and 2x + 3. If the perimeter of the triangle is 46 cm, what is the value of x?

HELPPP

by ATei

4.6k points

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3 votes

Answer:

x=13

Explanation:

perimeter equals the sum of sides of triangle

perimeter= x+x-9+2x+3

46=4x-6

46+6=4x

4x=52

x=52/4

x=13

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