Question

Paula ajutamaa ca tu te pricepi!!!! Ma gandesc la un numar , il inmultesc cu 5; la produs adaug 50 ; suma o injumatatesc, apoi scad 34 si obtin 1 deci obtin 1!!!! La ce numar m-am gandit???? Rezolvaa intr-un singur exercitiu, tinand cont de oridinea operatiilor!! REPEDE AM NEVOIEEE!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

(a×5+50):2 - 34=1 (a×5+50):2=34+1=35 a×5+50=70 a×5=70 - 50 a×5=20 a=20:5 a=4


Verificare [4·5+50]/2-34=[20+50]/2-34=70/2=34=35-34=1

Answer 2

[x·5+50]/2-34=1
⇒[x·5+50]/2=1+34
⇒[x·5+50]/2=35
⇒x·5+50=35·2
⇒x·5+50=70
⇒x·5=70-50
⇒x·5=20
⇒x=20/5
⇒x=4;⇒numarul gasit;
Verificare [4·5+50]/2-34=[20+50]/2-34=70/2=34=35-34=1;