October 2018 1 21 Report

Rzwiąż układ równań metodą podstawiania:

1)

2y-x=8

4x+3y=1

2)

2x+3y=17

6x+2y=16

3)

6x+3y=18

3x-2y=2

4)

0,5+0,2y=2

1,5x+0,5y=5,5

5)

1/4x+1/8y=1

1/12x+1/9y=7/36

6)

6(x-y)-y=40

2(2y-x)+y=-8

20)

2x+4y=1

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


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