Answer:
x = 32
Explanation:
from the figure we understand that it is an equilateral triangle, congruent sides and angles, the angles are always 60° (equilateral triangle only), therefore 2x - 4 and 5y are equal to 60°, we solve it with an equation
2x - 4 = 60
2x = 60 + 4
2x = 64
x = 64 : 2
x = 32
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check
2(32) -4 = 60
64 - 4 = 60
60 = 60
same value the answer is good