Question

I NEED HELP ABOUT WHAT Q=

Answer 1

`q=3+0.5r`

Explanation:

Given the equation with two variables

`10q-5r=30`

You have to rearrange this equation so the variable
`r` is independent variable. If
`r` is independent variable, then variable
`q` must be expressed in terms of
`r`.

Add
`5r` to both sides of equation:

`10q-5r+5r=30+5r\\ \\10q=30+5r`

Divide this equation by 10:

`(10q)/(10)=(30+5r)/(10)\\ \\q=(30)/(10)+(5r)/(10)\\ \\q=3+0.5r`