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Denisaandra35
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Rezolvati 3×8+1-{4+[15×(8-5× a)+23]:4}=4 exercițiu cu mersul invers repede va rog frumos

Răspuns :

Pisicutza71
3*8+1-{4+[15*(8-5*a)+23]:4}=4

24+1-4+[15*(8-5*a)+23]=4:4=1

24+1-4+15*(8-5*a)=23+1=24

1-4+15*(8-5*a)=24-24=0

4+15*(8-5*a)=1-0=1

15*(8-5*a)=4+1=5

8-5*a=15:5=3

5*a=8-3=5

a=5:5

a=1

Verificare:
3*8+1-{4+[15*(8-5*1)+23]:4}=

24+1-{4+[15*(8-5)+23]:4}=

24+1-{4+[15*3+23]:4=

25-{4+[45+23]:4}=

25-{4+68:4}=

25-{4+17}=

25-21=

=4

Coroanã?