Answer: x = 3
Step-by-step explanation:
This is an equilateral triangle, all the angles are congruence so also all the sides are equal, therefore you can equate any of the side to the other
6x - 3 = 5x
collect like term
6x-5x = 3
x = 3
OR
3x + 6 = 5x
5x - 3x = 6
2x = 6
divide bothside by 2
x= 3
OR
6x-3 = 3x + 6
collect like term
6x - 3x = 6 + 3
3x = 9
Divide bothside by 3
x = 3
Therefore x= 3
