Collect like terms
6x-8x
Is this -2x?
Yes. It's -2x
Yes, the expression 6x - 8x simplifies to -2x. To collect like terms, you combine the terms that have the same variable by adding or subtracting their coefficients. In this case, both terms have the variable x, so you can subtract their coefficients.
6x - 8x can be written as (6 - 8)x, which simplifies to -2x.