Question

Help. How to solve9d + n = 5r

Answer 1

We want to rewrite the following equation

`9d+n=5r`

With d as a function of the other terms. Let's start by subtracting n from both sides.

`\begin{gathered} 9d+n-n=5r-n \\ 9d=5r-n \end{gathered}`

Now, let's divide both sides by 9.

`\begin{gathered} (9d)/(9)=(5r-n)/(9) \\ \\ d=(5r-n)/(9) \end{gathered}`

And this is our final answer.