Question

calcula el valor de a
$\frac{48}{10.5} = \frac{7.5 + a}{a}$


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Answer 1

Respuesta:

$48a = 10.5(7.5 + a) \\ 48a = 78.75 + 10.5a \\ 48a - 10.5a = 78.75 \\ 37.5a = 78.75 \\ a = \frac{78.75}{37.5} \\ a = 2.1$