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1acolada2*[3+(x-4)*5]inpartit6acolada*7=8

Răspuns :

1+{2•[3+(x-4)•5]:6}•7=8
{2•[3+(x-4)•5]:6}•7=7
2•[3+(x-4)•5]:6=1
2•[3+(x-4)•5]=6
3+(x-4)•5=3
(x-4)•5=0
x-4=0
x=4

Sper ca te-am ajutat!