September 2018 1 11 Report

rozwiąż ukłądy równań metodą graficzną

a) x+2y =4

2x-y=3

b) x+y=1

2x+2y=4

c) 2x=5-3y

4x+6y=10

d) 3x+y=3

4x-2y=4

e) 2(x+1)+3(y-1)=2

3(x+5)-4(2-y)=11


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