Question

Determinati numarul necunoscut x din relatia (x+1/2)∙3/5=9/15

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

$( \frac{x + 1}{2}) \times \frac{3}{5} = \frac{9}{15}$

$\frac{3(x + 1)}{10} = \frac{3}{5}$

$\frac{3x + 3}{10} = \frac{3}{5}$

$5(3x + 3) = 30$

$3x + 3 = 6$

$3x = 6 - 3$

$3x = 3$

$x = 1$