September 2018 1 18 Report
Rozwiąż układy równań (to w nawiasach, to zmieniłam ułamki)

a)
3(x-0,5)+2(y+3)=3,5
"(3x-1):3" - "(y+3):2" =-1


b)
"(x-3):4" - "(y+5):2" =-1,5
"(x-3):2" - "(2y-7):3" = 1


c)
"(2x-5):2" - "(x-6y):4" = "(x+y):2"
"(3x-1):10" + "(2y-5):5" = "(2x+y):2"


d)
"(x-3):5" - "(y+1):2" =1-(x-y)
"(4x-1):3" - "(y-3):6" =-2(x-y)

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