September 2018 1 18 Report

Rozwiąż układy równań.

a) 4x+y=11

5y-x=13

b) 2x+5=7y

2(x+2)-7y=-1

c) 3(x+y)-2(y+3)=y+3(x-2)

x-2y=5

d) 2x+5y=2

3(x+y)+2y=3

e) x+2y=5

2x+4(y-2)=0

f) 3x-10y=5

10x-3y=47

g) 5x-y-2=0

15(x-0,5)-2y=y

h) 2x-y=1

3(2x-y)-4(1-x)=3y-1


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