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Zad 5 str 98 matematyka z plusem

a) podkreśl równania, które spełnia liczba 0

2x + 3 = 3

4z - 6z = 0

4 = 4 - 4y

3v = -v

-5u = 0

17 - x = 17x


Odpowiedź :

2x + 3 = 3

L = 2 · 0 + 3 = 3

P = 3

L = P

4z - 6z = 0

L = 4 · 0 - 6 · 0 = 0

P = 0

L = P

4 = 4 - 4y

L = 4

P = 4 - 4 · 0 = 4

L ≠ P

3v = -v

L = 3 · 0 = 0

P = 0

L = P

-5u = 0

L = -5 · 0 = 0

P = 0

L = P

17 - x = 17x

L = 17 - 0 = 17

P = 17 · 0 = 0

L ≠ P