Explanation
Correct answer: 1/5,.2,.20,0.2.
2 from each side of the given equation yields . Therefore, the value of that's the solution to the given equation is $0.2$. Note that 1/5, .2, .20, and 0.2 are examples of ways to enter a correct answer.
Desmos solution:
Enter in Desmos:
Reviewed and rewritten by CookSAT