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ex 15 va rog sa ma ajutati Ex ala cu Determina......​

Ex 15 Va Rog Sa Ma Ajutati Ex Ala Cu Determina class=

Răspuns :

Răspuns:

{[(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-8)×7]=13-6

[(x-8)×7]=7

x-8=7÷7

x-8=1

x=8+1

x=9