Answer:
[tex]x = 15 \frac{1}{3} [/tex]
Step-by-step explanation:
Equilateral triangles have 3 equal sides.
Thus, perimeter of triangle
= 3(2x -3)
= 3(2x) +3(-3) (expand)
= (6x -9) inches
Given that the perimeter is 83 inches,
6x -9= 83
6x= 83 +9 (+9 on both sides)
6x= 92
[tex]x = 15 \frac{1}{3} [/tex]
