Question

7*{124-5*[210-n*(23*17-24*120]}=728

va rog frumos rapid si explicat

Answer 1

Răspuns:

Explicație pas cu pas:

trebuie aplicata metoda mersului invers

7*{124-5*[210-n*(23*17-24*120]}=728

vom aplica metoda mersului invers si nu vom mai pune parantezele rotunde

[124-5*(210-n*23*17-24*120)] =728÷7

[124-5*(210-n*23*17-24*120)]=14

5*210-n*23*17-24*120=14+124

5*210-n*23*17-24*120=138

210-n*23*17-24*120=138*5

210-n*23*17-24*120=690

210-n*23*17-24=690*120

210-n*23*17-24=82.800

210-n*23*17=82.800+24

210-n*23*17=82.824

210-n*23=82.824÷17

210-n*23=4.872

210-n=4.872*23

210-n=112.056

n=210+112.056

n=112.666

SPER CA TE-AM AJUTAT!!!