### Home > CC4 > Chapter 10 > Lesson 10.1.1 > Problem 10-15

10-15.

Solve each of the following equations for the indicated variable. Homework Help ✎

Solve for

*d*:*I*=*md*+ 18Start by subtracting 18 from both sides.

Solve for

*q*:*S*= 25*p*+*q**q*=*S*− 25*p*Solve for

*n*:*PV*=*nRT*

To solve for

*n*you will need to divide both sides by*RT*.