Answer:
r = 1
Explanation:
In this question, we have to solve for the vallue of "r". We will use the distributive property shown below to ease our process.
Distributive Property:
a(b+c) = ab + ac
Now, lets solve this:
![-4r-8(r-6)=7(5r-1)+8\\-4r-8r+48=35r-7+8\\-12r+48=35r+1\\48-1=35r+12r\\47=47r\\r=(47)/(47)\\r=1](https://img.qammunity.org/2020/formulas/mathematics/middle-school/hba0hqh3wqwgt9jlk4aongjvy08m77caql.png)
As we have seen the value of r is "1"