Answer:
x = 2
Explanation:
Let's find our third angle:
60 + 60 + A = 180
A = 60
Because all of our angles are the same, the triangle must be equilateral, meaning all of the sides are the same length as well!
(Pick any two sides):
2x + 3 = 4x - 5
(add 5 to both sides):
2x + 8 = 4x
(Subtract 2x from both sides):
2x = 4
(divide both sides by two):
x = 2!