September 2018 1 44 Report

rozwiąż układy rówań metodą przeciwstawnych współczynników.

a ) x + y = 2

x - y = 8

b ) - 2x + y = 4

2x + 2y = 2

c ) 3x + y = 11

2x - y = 2

d ) 4x + 3b = 11

4x + 3y = 5

e ) 10 x - y = 3

3 x + y = 10

f ) 5e - 2f = 8

- 5e + f = -9

g ) 2x - y = 4

x + 2y = 7


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