nevaehsierra76 nevaehsierra76
  • 03-08-2017
  • Mathematics
contestada

how to solve -4(r+6)=-63

Respuesta :

mmer mmer
  • 03-08-2017
-4r-24=-63
-4r=-63+24
4r=39
r=9, 75
:)
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3mar 3mar
  • 03-08-2017
-4(r+6)=-63

first: substitute -4 to the brackets (r+6)

-4r - 24 = - 63

add 24 to both sides

-4r - 24 + 24 = -63 + 24

simplify

-4r = -39

divide both sides by -4

r = 9.75




hope that helps
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