Answer:
y=4
Step-by-step explanation:
because this is an equilateral triangle, this means that all the size of the lengths is equal this means that,
2y+5 = 4y-3
(add 3 for both sides)
2y+8 = 4y
(subtract 2y for both sides)
8 = 2y
(divide by 2 for both sides)
4 = y
so,
y=4
