i uploaded a vid on this here
https://www.you tube.com/watch?v=dQw4w9WgXcQ
I’m sorry but I don’t know i would honestly like to help u but don’t know
Answer:

Step-by-step explanation:
The point-slope form of an equation of a line:

<em>(x₁, y₁)</em><em> - point on a line</em>
<em>m</em><em> - slope</em>
<em />
We have

Substitute:

Convert to the standard form

<em> use the distributive property</em>

<em>add 5 to both sides</em>

<em>add 4x to both sides</em>

Answer:
8 = r
Step-by-step explanation:
69 = 9r -3
Add 3 to each side
69+3 = 9r -3+3
72 = 9r
Divide each side by 9
72 / 9 = 9r/9
8 = r