Question

exercițiul 43 vă rog
dau coroana+30 puncte​

Answer 1

Răspuns: $\color{red}\Large\boxed{\bf x = 21}$

Explicație pas cu pas:

$\large\bf 1-\{[603-135:(16-x:3)]:4+853 \}:1000=0~~~\bigg|\cdot 1000$

$\large\bf 1000 -\{[603-135:(16-x:3)]:4+853 \}=0$

$\large\bf 1000 =\{[603-135:(16-x:3)]:4+853 \}$

$\large\bf [603-135:(16-x:3)]:4+853=1000$

$\large\bf [603-135:(16-x:3)]:4=1000 -853$

$\large\bf [603-135:(16-x:3)]:4=147~~~\bigg|\cdot4$

$\large\bf 603-135:(16-x:3)=588$

$\large\bf 603=588+135:(16-x:3)$

$\large\bf 603-588=135:(16-x:3)$

$\large\bf 15=135:(16-x:3)~~~\bigg|\cdot (16-x:3)$

$\large\bf 15\cdot(16-x:3)=135~~~\bigg|:15$

$\large\bf 16-x:3=9~~~\bigg|\cdot 3$

$\large\bf 48-x=27$

$\large\bf 48=27 +x$

$\large\bf 48-27=x$

$\color{red}\Large\boxed{\bf x = 21}$

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