October 2018 1 14 Report

1) 11/20y- 0,8(1/4k +2,5 )=2,5 6x-0,3y//2 - 1,5=2+2x
2) y/2 +x/4 - 1/5 (x+2)=1,1
x-2y +4=x/2 +3/4(y-o,5)
3)(x-1)^2 - (y-3)^2 = (x-y)(x+y)
x+2//2 - y+4//3 =1

prosze to już ostatnie do rozwiązania
daje naj


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