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(1/4)*(a+4*b)-((5/4)*(2*a+4*b)) = 0
(1/4)*(a+4*b)+(-5/4)*(2*a+4*b) = 0
1/4*(a+4*b)-5/4*(2*a+4*b) = 0
1/4*(a+4*b)-5/4*(2*a+4*b) = 0
-9/4*a-4*b = 0
-9/4*a-4*b = 0
x belongs to the empty set
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