Question

Fill in the box to make the equation true.
7x- something +5x=6x

Answer 1

The missing value is

6x

Explanation:

Let the unknown value be y

`7x-y +5x=6x`

Group like terms and simplify

`-y =6x -7x -5x\\\\-y = -6x\\\\y =6x`

So...

`7x -6x +5x =6x\\6x =6x`