Milky Way Galaxy
Side View
The diagram above is a side view of the Milky Way Galaxy
In the diagram, our solar system is located at position

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x

Can some one me with these questions

Solve the following: 12(x^2–x–1)+13(x^2–x–1)=25(x^2–x–1) 364x–64x=300x