Two times three equals six

Two times three equals six

The answer is not unique
For example, 2 / 1 times 3 / 9 equals 6 / 1
Another example is 2 / 3 times 27 / 3 equals 6 / 1
Another example is 2 / 7 times 3 / 21 equals 3 / 6

What is x (1-2 / 5) = 3 / 5x-6

4/5x=3/5x-61/5x=-6x=-30

Simplify and evaluate. X / x + 1-x + 3 / x + 1 times 2x ^ 2 + 6x / x ^ 2 + 6x + 9, where x = - 1 / 2

The title is a bit messy. Please write it carefully
If x / (x + 1) - (x + 3) / (x + 1) times (2x ^ 2 + 6x) / (x ^ 2 + 6x + 9)
Then it can be changed into - 3 * 2x / [(x + 1) * (x + 3)] and x = - 1 / 2 is substituted into: 12 / 5