👤

1+{2.[3+(x-4).5].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