August 2018 1 37 Report
Rozwiaz uklad rownan metoda mieszana... pomozecie ?
a)
3x-y=4
5x-2y=5

b)
2x-y=-6
x-y=-3

c)
2x-5y=9
3x+y=5

d)
x+3x=4
2x-y=1

e)
(x-1)^2-(y-3)^2=(x-y)(x+y)
1/2(x+4)-1/3(y+4)=1

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