Answer :

Answer:

The missing value is

6x

Step-by-step explanation:

Let the unknown value be y

[tex]7x-y +5x=6x[/tex]

Group like terms and simplify

[tex]-y =6x -7x -5x\\\\-y = -6x\\\\y =6x[/tex]

So...

[tex]7x -6x +5x =6x\\6x =6x[/tex]

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