August 2018 2 12 Report
Rozwiąż podane układy równań metodą podstawiania
a)x+2y=-2
2x-y=1
b) x+4y=-2
3x-8y=10
c)x-2y=3
-2x+y=0
d) 2x+y=9
5x-4y=3
e) 3x-2y=5
2x-y=4
f)2x+9y=-9
-3x+3y=8
g)2x+3y=4
8x-5y=-1
h) x-y=0
x+y+z=4
x+2y+3z=9
Pomóżcie!! :*
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