Question

ecuación. 0.07= x/100+x, donde x= gramos del soluto.

Answer 1

Respuesta:

x=0.0693

 

Explicación:

$0.07=\dfrac{x}{100}+x\\\\0.07=\left(\dfrac{1}{100}+1 \right)x\\\\0.07=\left(\dfrac{1+1\times100}{100} \right)x\\\\0.07=\left(\dfrac{101}{100} \right)x\\\\0.07=1.01x\\\\x=\dfrac{0.07}{1.01}\\\\\boxed{x=0.0693}$

Answer 2

Respuesta:

$0.07 = \frac{x}{100 + x} \\ 0.07(100 + x) = x \\ 7 + 0.07x = x \\ 7 = x - 0.07x \\ 7 = 0.93x \\ x = \frac{7}{0.93} \\ x = 7.53$