alisonmrodriquez1450
12.12.2020 •
Mathematics
I need hellpppp please help meee
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Ответ:
r=4
Step-by-step explanation:
1) lets distribute "-4" and "4"
-4r-8=8-8r
2) bring -8r to the left and -8 to the right and combine like terms
-4r+8r=8+8
4r=16
divide by 4 on both sides:
r=4
check by substituting "r" as 4:
-4(4+2)=4(2-2(4))
-24=-24
this statement is true so r=4 is correct
hope this helps!