Question

Va rog frumos exercițiul 9

Answer 1

Răspuns:

x=7

Explicație pas cu pas:

{[(x-8)•7+6-5]-4}•3-2=10

{[(x-8)•7+6-5]-4}•3=10+2

{[(x-8)•7+6-5]-4}•3=12

[(x-8)•7+6-5]-4=12:3

[(x-8)•7+6-5]-4=4

(x-8)•7+6-5=4+4

(x-8)•7+6-5=8

(x-8)•7+6=8+5

(x-8)•7+6=13

(x-6)•7=13-6

(x-6)•7=7

x-6=7:7

x-6=1

x=1+6

x=7