Question

Determină numărul natural x din egalitatea: {[(x-8)·7+6-5]-4}-3-2=10.​

Answer 1

{[(x-8)-5+6-5]-4}-3-2=10

{[(x-8)-5+6-5]-4}-3=10+2=12

[(x-8)-5+6-5]-4=12+3=15

(x-8)-5+6-5=15+4=19

(x-8)-5+6=19+5=16

(x-8)-5=16-6=10

x-8=10+5=15

x=15+8

x=23