a. 2/3x+1=3/2+x-1/3
b. 2x-1/3=1/3-1/2x-2/3
a. 2/3x+1=3/2+x-1/3
b. 2x-1/3=1/3-1/2x-2/3
20
punti
Livello 0
. 2/3x+1=3/2+x-1/3
2/3x-x=-1/3+3/2-1
-1/3x= 1/6
x=-1/2
———-
2x-1/3=1/3-1/2x-2/3
2x+1/2x= -2/3+1/3+1/3
5/2x= 0
x=0
6716
punti
Livello 6
a)
$\frac{2}{3}x +1 = \frac{3}{2}+x-\frac{1}{3}$
mcm= 6 quindi:
$4x +6 = 9+6x-2$
$4x +6 = 7+6x$
$4x-6x = 7-6$
$-2x = 1$
$2x = -1$
$x= -\frac{1}{2}$
b)
$2x -\frac{1}{3} = \frac{1}{3}-\frac{1}{2}x-\frac{2}{3}$
mcm = 6 quindi:
$12x -2 = 2 -3x-4$
$12x -2 = -3x -2$
$12x +3x = -2+2$
$15x = 0$
$x= \frac{0}{15}$
$x = 0$
57878
punti
Genius I
(2/3)x + 1 = 3/2 + x -1/3
(2/3)x - x = -1 +3/2 - 1/3
-x/3 = 1/6
x = -3/6
x = -1/2
2x -1/3 = 1/3 -(1/2)x - 2/3
2x + x/2 = 1/3 + 1/3 -2/3
5x/2 = 2/3-2/3
5x = 0
x = 0
114322
punti
Genius II