adriana16391
adriana16391
25-03-2021
Mathematics
contestada
PLEASE HELP I WILL MARK YOU BRAINIEST!!
Respuesta :
kenzieeeot7
kenzieeeot7
25-03-2021
Answer:
r = 9
The error happened when -3 was multiplied by -r in the first step, negative and negative makes a positive so it should have been
-18 + 3r= 9 in the second step.
Hope this helps :)
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