ANSWER
The value of y is
[tex]8[/tex]
EXPLANATION
The given triangle has all its sides equal.
This means that the measure of each
[tex]60 \degree[/tex]
Since we are solving for y , we take the expression of the angle containing y and equate to 60°.
This implies that,
[tex](8y - 4) \degree = 60 \degree[/tex]
We add 4 to both sides of the equation to obtain,
[tex]8y = 60 + 4[/tex]
This implies that,
[tex]8y = 64[/tex]
We divide through by 8 to obtain,
[tex]y = \frac{64}{8} [/tex]
This implies that,
[tex]y = 8[/tex]
