October 2018 2 8 Report

Rozwiąż układy równań .

a) klamra 3x= 12

x-y = 1

b)klamra 2x-y=10

x+5y=-17

c)klamra 3m+n=9

2m-5n=-11

d)klamra 4a-2=b

3a=7b=1,5

e)klamra 5x=4-2y

4x=y=3

f)klamra 6x-3y=9

x=5y=_9,5


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