Question

Two sides of an equilateral triangle are labeled 12 inches and 3x - 6 inches. Find x.

Answer 1

6

Explanation:

In equilateral triangle, all the sides are congruent.

3x - 6 = 12

Add 6 to both sides

3x = 12 + 6

3x = 18

Divide both sides by 3

x = 18/3

x = 6