6x / 7+3=3 / 7
6x/ 7 = 3 / 7-3 / 1
6x / 7 = -(6 / 9)
делаем пропорцию 6x*9 = 7*6 54x=42 x=54/42
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6х+3=3
6х=0
Х=0
6x / 7+3=3 / 7
6x/ 7 = 3 / 7-3 / 1
6x / 7 = -(6 / 9)
делаем пропорцию 6x*9 = 7*6 54x=42 x=54/42