haileyb10
haileyb10
07-03-2017
Mathematics
contestada
PLEASE HELP ON THESE 2 QUESTIONS
Respuesta :
rarrininger
rarrininger
07-03-2017
1) 9/4x-2 = 12/3x+2
9(3x+2) = 12(4x -2)
27x +18 = 48x -24
27x-27x +18 = 48x-27x -24
18 = 21x -24
18 +24 = 21x -24+24
42 = 21x
42/21 = 21x/21
x= 2
2. x/9 = 25/15
15x = 225
15x/15 = 225/15
x= 15
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