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(2/5)*x+(1/4)*x+3 = 227/80 // - 227/80
(2/5)*x+(1/4)*x-(227/80)+3 = 0
(2/5)*x+(1/4)*x-227/80+3 = 0
13/20*x+13/80 = 0 // - 13/80
13/20*x = -13/80 // : 13/20
x = -13/80/13/20
x = -1/4
x = -1/4
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