Answer :

caylus
Hello,

Hard to devine the non marked sign!

Let' s go without than.


-5x+7 ? 42
==>-5x? 42-7
==>-5x ? 35
==>x not ? 35/(-5)
==>x not ? -7

Answer D and the missing signe is

not ? is <
==> ? is >

Very hard to make math !!!

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