SImplify: x+3/9/x+12/6

Really stuck on this problem

To simplify this, first, multiply the whole equation with x to get rid of the denominator.

[ x + 3/9/x + 12/6] * x

Simplify 12/6 beforehand, which is 2.

[ x + 3/9/x + 2] * x

Distribute x to each of the terms

x2 + 3/9 + 2x

This is already a simplified equation. If you wan to further simplify by getting rid of the fraction, multiply the whole equation with 9 to eliminate the denominator.

[x2 + 3/9 + 2x]*9

9x2 + 3 + 18x

9x2 + 18x + 3 = 0