230
punti
Livello 1
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1°
$ -\dfrac{5}{6}x = 9$
$ -5x = 54$
$ 5x = -54$
$\dfrac{\cancel5x}{\cancel5} = -\dfrac{54}{5}$
$x= -\dfrac{54}{5}$ $ \Longrightarrow(x= 10,8).$
2°
$ 9x = -\dfrac{3}{4}$
$ 36x = -3$
$ \dfrac{\cancel{36}x}{\cancel{36}} = -\dfrac{\cancel3^1}{\cancel{36}_{12}}$
$ x= -\dfrac{1}{12}$ $\Longrightarrow(x= -0,08\overline3).$
3°
$-\dfrac{6}{7}x = \dfrac{7}{6}$ $(mcm= 42)$
$ -36x = 49$
$ 36x = -49$
$ \dfrac{\cancel{36}x}{\cancel{36}} = -\dfrac{49}{36}$
$ x= -\dfrac{49}{36}$ $\Longrightarrow(x= -1,36\overline1).$
68268
punti
Genius I
@gramor 👍👌👍
69a
x = 9*-6/5 = -54/5
69b
x = -3/(4*9) = -1/12
69c
X = 7/6*-7/6 = -49/36
142418
punti
Genius III
