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Rezolvati ecuatia:
{[4+8•(10-3•x)]:6-1}•7=35
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Răspuns :

{[4+8*(10-3*x)]/6-1}*7=35
{[4+8*(10-3x)]/6-1}*7=35
[(4+8*10-3x)/6-1]*7=35
[(4+80-3x)/6-1]*7=35
[(84-3x)/6-1]*7=35
(84-3x/6-1)*7=35
(84-2x-1)*7=35
84-2x-1*7=35
84-2x-7=35
-2x=-42
x=21

{[4+8•(10-3•x)]:6-1}•7=35
{[12•(10-3x)]:5}•7=35
{[12•(10-3x)]:5}=35:7
{[12•(10-3x)]:5}=5
[12•(10-3x)]=5•5
[12•(10-3x)]=25
(10-3x)=25-12
10-3x=13
3x=13-10
3x=3
x=3:3
x=1