6x-7x=20

what is the value of x-

-x=20

Which means x=-20

To find the value of x in the equation 6x - 7x = 20, we can start by simplifying the equation by combining like terms.

6x - 7x can be simplified to -x.

So the equation becomes -x = 20.

To isolate x, we can multiply both sides of the equation by -1 to get x by itself.

Multiplying -1 to both sides gives us x = -20.

Therefore, the value of x in the equation 6x - 7x = 20 is -20.