queenval101
queenval101
28-09-2017
Mathematics
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What's 8x-2(x+9)=x+47
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Аноним
Аноним
28-09-2017
8x-2(x+9)=x+47
8x - 2x - 18 = x + 47
6x - 18 = x + 47
6x -x - 18 = x - x + 47
5x - 18 = 47
5x -18 + 18 = 47 + 18
5x = 65
5x/ 5 = 65 / 5
x = 13
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