Question

2=564:n-56:n afla terminat necunoscut

Answer 1

Dam factor comun pe n:

2=(564-56):n
2=508:n
n=508:2=254

Alta rezolvare e sub forma de fractii:

$2= \frac{564}{n} - \frac{56}{n} \\ 2= \frac{564-56}{n} \\ 2= \frac{508}{n} \\ n= \frac{508}{2}=254$

Answer 2

$2= \frac{564}{n}- \frac{56}{n}$ avem acelasi numitor deci nu mai are rost sa scriem doua fractii.
$2= \frac{564-56}{n} \\ \\ 2= \frac{508}{n} \\ 2*n=508 \\ n= \frac{508}{2} \\ n=\boxed{254}$