Question

Hallar "x"

a)
718 (26) 582
474( x ) 226


b)
42 (44) 38
28 ( x ) 23

c)
9 (45) 81
8 (36) 64
10 ( x ) 40

Answer 1

a)
 $718 \ (26) \ 582 \\ 474\ ( x ) \ \ 226 \\ \\ 718+582= 1300\quad \to \frac{1300}{26}= 50 \\ \\ 747+226= 700\quad \to \frac{700}{50} = \boxed{14} \\ \\ \left \boxed{474 \ (14) \ 226}$



b)
 $42 \ (44) \ 38 \\ 28\ ( x ) \ \ 23 \\ \\ 42-38= 4\quad \to \frac{44}{4}= 11 \\ \\ 28-23=5\quad \to \frac{x}{5} =11\to \boxed{x= 55} \\ \\ \left \boxed{28 \ (55) \ 23}$




c) 
 $9 \ (45) \ 81 \\ 8\ (36)\ 64 \\10\ ( x ) \ 40 \\ \\ 9+81= 90\to \frac{90}{2}= 45 \\ \\ 64+8= 72\to \frac{72}{2}= 36 \\ \\ 40+10= 50\to \frac{50}{2}= \boxed{x=25} \\ \\ \boxed{10\ ( 25 ) \ 40 \\}$


Espero que te sirva, salu2!!!!