Question

Afla:

[(563×12+a×3-5):4+328:8]×24-136×13=39848
Rezolvare:CLASA A 4-A

Answer 1

Răspuns:

Explicație pas cu pas:

[(563x12+ax3-5) :4+328 :8]x24-136x13=39848

[6756+a x 3 -5 ) :4 + 41 ] x 24 - 1786 = 39848

[ ( 6756 + a x 3 - 5 ) :4 +41 ] x 24 = 39848 - 1786

[( 6756 + a x 3 - 5 ) :4 + 41 ] x 24 = 41616

[( 6756 + a x 3 - 5 ) :4 +41 ] = 41616 :24

( 6756 + a x 3 - 5) :4 + 41 = 1734

( 6756 + a  x 3 -5 ) : 4 = 1734-41

( 6756 + a x 3 - 5 ) : 4 = 1693

( 6756 + a x 3 - 5 )=1693 x 4

6756+a x 3 - 5 = 6772

6756 + a x 3 =6772 + 5

6756 + a x 3 =6777

3 x a = 6777 - 6756

3 x a = 21

a = 21 : 3

a = 7