myiahvee
myiahvee
15-11-2019
Mathematics
contestada
x + 8y = 11 and -x -10 y=-19 elimination
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StarGazers
StarGazers
15-11-2019
(x,y) = (-21,4).
x+8y=11,
-1-10y=-19 now equals (x+8y=11)+(-1-10y)=11+-19 simplified equals -2y=-8.
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