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X^2-4x+4=0
(x-2)^2=0
x^2-4x+4=0
(x-2)^2=0
x-2=0
x=0+2
x=2
11,2/3х - 5,1/6 = 3,3/4 + 2,3/4х
( 11,2•2 - 5,1•Х )/6х = ( 3,3•Х + 2,3)/4х
( 2(22,4 - 5,1х))/12х = (3( 3,3х + 2,3))/12х
Х не равен 0
44,8 - 10,2х = 9,9х + 6,9
20,1х = 37,9
Х = 379/201 = 1 178/201