Uzupełnij ;)
6x+7=47-2x
? x = ?
w ? trzeba wpisać liczbę ;)
6x+2x=47-7
8x=40
x=5
6x + 2x = 47 - 7
8x = 40 | : 8
x = 5
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6x+7=47-2x
6x+2x=47-7
8x=40
x=5
6x + 2x = 47 - 7
8x = 40 | : 8
x = 5