Ambergabe2014
Ambergabe2014
20-02-2017
Mathematics
contestada
Solution of equation 3x-5y= 4 4x+3y=15
Respuesta :
ChandrikaP
ChandrikaP
20-02-2017
3x-5y=4------eq1
4x+3y=15-------------eq2
multiply 3 to first eq and 5 to second eq.
9x-15y=12
20x+15y=75
subtract both eqs
29x=87 x=3 so put x in eq 1
3(3)-5y=4
5y=5
y=1
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