Answer:
e = -2
Explanation:
First use distributive property to remove the parenthesis
-2/5(5 - 10e) = e + 1/3(6e - 12)
-2/5 * 5 + (-2/5) * (-10e) = e + 1/3 * 6e - 1/3 * 12
-2 + 4e = e + 2e - 4
move variables to one side and move constants to other side;
e = -2