Question

answer??
ill give a brainliest

Answer 1

Answer:

r=7

Step-by-step explanation:

-30=12-6r

We move all terms to the left:

-30-(12-6r)=0

We add all the numbers together, and all the variables

-(-6r+12)-30=0

We get rid of parentheses

6r-12-30=0

We add all the numbers together, and all the variables

6r-42=0

We move all terms containing r to the left, all other terms to the right

6r=42

r=42/6

r=7

   

   

Answer 2

Answer:

-3 = r OR r = -3

Step-by-step explanation:

-30 = 12 - 6r

30+12 = -18   12+12 = (cancels out left with just 6r)

-18/6r = -3

-3 = r

Hope this helped :)