Odpowiedź:
14x - 3 = 7x + 18
14x - 7x = 18 + 3
7x = 21 /: 7
x = 3
7x = 21
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Odpowiedź:
14x - 3 = 7x + 18
14x - 7x = 18 + 3
7x = 21 /: 7
x = 3
14x - 3 = 7x + 18
14x - 7x = 18 + 3
7x = 21
x = 3