Respuesta :

*To solve for a specified variable, you need to isolate that variable onto one side.

11.

Firstly, subtract 5r on both sides: [tex]2p=q-5r[/tex]

Lastly, divide both sides by 2 and your answer will be [tex]p=\frac{1}{2}q-\frac{5}{2}r[/tex]

12.

First, subtract z on both sides of the equation: [tex]-10-z=xy[/tex]

Next, divide both sides by y and your answer will be [tex]\frac{-10-z}{y}=x[/tex]

13.

Firstly, multiply both sides by b: [tex]a=cb[/tex]

Next, divide both sides by c and your answer will be [tex]\frac{a}{c}=b[/tex]