August 2018 1 14 Report
Rozwiąż układy równań metodą przeciwnych współczynników.

a)
3x + 2y = 13
2x + y= -1

b)
5x + 3y = 0
x - 2y = 7

c)
3x + 2y = 2
5x + 4y = 6

d)
3x + 5y = -6
1,5x - 2y = 7

e)
5 = 3x - y
5x - 2y = 7

f)
x - 3y = 5
y + 3x = -5
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