Question

Aflati x din: a)x/5=6/10 b)x+2/x+3=3/4 REPEDE VA ROG ​

Answer 1

Răspuns:

$\frac{x}{5} = \frac{6}{10}$

10x=30

Impartim prin 10 si avem x=3

$\frac{x + 2}{x + 3} = \frac{3}{4}$

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

4x+8=3x+9

4x-3x=9-8

x=1