Tuesday, December 24, 2013

Solve by substitution: {6x+2y=11, 4x+y=6}.

6x+2(6-4x)=11
6x+12-8x=11
-2x=-1
x=1/2
y=6-4(1/2)=6-2=4
y=4
solution: (1/2, 4)
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