Dell381
Dell381
17-03-2015
Mathematics
contestada
what is the solution set for 8x-9=11x+12
Respuesta :
baonguyenq1999
baonguyenq1999
17-03-2015
8x-9=11x+12
8x-11x-9=12
-3x-9=12
-3x=12+9
-3x=21
x=21/-3
x=-7
Answer Link
Panoyin
Panoyin
18-03-2015
8x - 9 = 11x + 12
-8x -8x
-9 = 3x + 12
-12 -12
-21
=
3x
3 3
-7 = x
Answer Link
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