Question

Exercițiul din imagine.

Answer 1

$\displaystyle (x+\frac 12 x)+(\frac x2+\frac 12\times\frac x2)=1\frac 12 \text{ } |\times 4\\ \\ 4x+2x+2x+x=4+2\\ \\ 9x=6\\ \\ x=\frac 69\\ \\ \\ x=\frac 23$

Answer 2

(2x/2 + x/2) + (2x/4 + x/4) = 3/2

3x/2 + 3x/4 = 3/2

6x/4 + 3x/4 = 6/4 l ×4

6x + 3x = 6

9x = 6

x = 6/9 = simplificam cu 3

x = 2/3