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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