Răspuns: [tex]\color{red}\Large\boxed{\bf x = 21}[/tex]
Explicație pas cu pas:
[tex]\large\bf 1-\{[603-135:(16-x:3)]:4+853 \}:1000=0~~~\bigg|\cdot 1000[/tex]
[tex]\large\bf 1000 -\{[603-135:(16-x:3)]:4+853 \}=0[/tex]
[tex]\large\bf 1000 =\{[603-135:(16-x:3)]:4+853 \}[/tex]
[tex]\large\bf [603-135:(16-x:3)]:4+853=1000[/tex]
[tex]\large\bf [603-135:(16-x:3)]:4=1000 -853[/tex]
[tex]\large\bf [603-135:(16-x:3)]:4=147~~~\bigg|\cdot4[/tex]
[tex]\large\bf 603-135:(16-x:3)=588[/tex]
[tex]\large\bf 603=588+135:(16-x:3)[/tex]
[tex]\large\bf 603-588=135:(16-x:3)[/tex]
[tex]\large\bf 15=135:(16-x:3)~~~\bigg|\cdot (16-x:3)[/tex]
[tex]\large\bf 15\cdot(16-x:3)=135~~~\bigg|:15[/tex]
[tex]\large\bf 16-x:3=9~~~\bigg|\cdot 3[/tex]
[tex]\large\bf 48-x=27[/tex]
[tex]\large\bf 48=27 +x[/tex]
[tex]\large\bf 48-27=x[/tex]
[tex]\color{red}\Large\boxed{\bf x = 21}[/tex]
#copaceibrainly
