rayonni
rayonni
01-02-2017
Mathematics
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Аноним
Аноним
01-02-2017
Apply proportionality theorem here,
21/9 = x+6 / x
21x = 9(x+6)
21x = 9x + 54
21x - 9x = 54
12x = 54
x = 54/12
x = 4.5
In short, Your Answer would be 4.5
Hope this helps!
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