Chancla2002
Chancla2002
17-03-2017
Mathematics
contestada
Use elimination to solve!!!!!!
Respuesta :
ahonyek
ahonyek
17-03-2017
For easier notation lets use: Nn=x and Nd=y
x+y=22
5x+10y=135
Multiply the first equation by 5 to get
5x+5y=110
Now you can eliminate x by subtracting the first equation from the second
5x+10y-5x-5y=135-110
5y=25
y=5
x=17
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