If it takes Wilbur 3 hours to rake the leaves in a neighbors’ backyard, and it takes his friend, Orville 6 hours to rake the same amount of leaves, how long would it take Wilbur and Orville to rake the leaves in a neighbors’ backyard together?

Question

anonymous · Answer

I know the rational equation is:
1 over 3 + 1 over 6 = 1 over x

But how do I go about solving this?

anonymous · Answer

Multiply each term by 6x then solve the equation.

anonymous · Answer

Ok, even the numerators?

anonymous · Answer

@pabo 

I tried it, and I got 2x + x = 6.
Now I'm stuck, how do I solve from here?