Question

La sfertul jumatatiii unui nr. adaug 10, inmultesc suma obtinuta cu 8, scad din produs 32, impart la 4 diferenta obtinuta si adaugand 30 obtin 50. Aflati nr.

Answer 1

1/2*x*1/4=b+10=c*8=d-32=e:4=f+30=50
f+30=50⇒f=50-30=20
e:4=20⇒e=20*4=80
d-32=80⇒d=80+32=112
c*8=112⇒c=112:8=14
b+10=14⇒b=14-10=4
1/2*x*1/4=4⇔1/8*x=4⇒x=4*8=32
R:Numarul este 32(poti sa faci proba)

Answer 2

{[( a : 2 ) : 4 + 10 } x 8 - 32 : 4 + 30 = 50
{[( a : 2 ) : 4 + 10 x 8 - 32 + 4 = 50 - 30 = 20
( a : 2 ) : 4 + 10 x8 - 32 = 20 - 4 = 16
( a : 2 ) : 4 + 10 x8 = 16 + 32 = 48
( a : 2 ) : 4 + 10 = 48 : 8 = 6
( a : 2 ) : 4 = 6 - 10 = - 4
a : 2 = -4 x4 = - 16
a: 2 = - 16
a = - 16 x 2
a = - 32