14/20-(-20/10) = 4x/2-2x
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(14/20)+(20/10)=4x/(2-2x)
(140+400)/200=4x/(2-2x)
54/20=4x/(2-2x)
(2-2x)14=5*4x
28-28x=20x
28=48x
x=7/12
(140+400)/200=4x/(2-2x)
54/20=4x/(2-2x)
(2-2x)14=5*4x
28-28x=20x
28=48x
x=7/12
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