Question

Hi can you help me please?)

Answer 1

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

11.

Firstly, subtract 5r on both sides:
`2p=q-5r`

Lastly, divide both sides by 2 and your answer will be
`p=(1)/(2)q-(5)/(2)r`

12.

First, subtract z on both sides of the equation:
`-10-z=xy`

Next, divide both sides by y and your answer will be
`(-10-z)/(y)=x`

13.

Firstly, multiply both sides by b:
`a=cb`

Next, divide both sides by c and your answer will be
`(a)/(c)=b`