Odpowiedź:
3x+y=10
2x-y=12
5x=22
x=4,4
x=4.4
2×4.4-y=12
8.8-y=12
-y=12-8.8
-y=3.2
y=-3.2
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Odpowiedź:
3x+y=10
2x-y=12
5x=22
x=4,4
x=4.4
2×4.4-y=12
x=4.4
8.8-y=12
x=4.4
-y=12-8.8
x=4.4
-y=3.2
x=4.4
y=-3.2