Odpowiedź:
2V49-6V7+3V7-V28=2•7-3V7-V(4•7)=
=14-3V7-2V7=14-5V7
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Odpowiedź:
2V49-6V7+3V7-V28=2•7-3V7-V(4•7)=
=14-3V7-2V7=14-5V7