TRUEBOSS72
TRUEBOSS72
12-03-2018
Mathematics
contestada
Please help me asap!!!
Respuesta :
choixongdong
choixongdong
12-03-2018
rewrite (1st) equation
-x - 2y = - 9
multiply the (1st) equation by 3
-3x - 6y = -27
now you have
-3x - 6y = -27
3x - 6y = -15
-----------------------add
-12y = -42
y = 3.5
2(3.5) = -x + 9
7 = - x + 9
x = 2
answer
(2 , 3.5)
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