## College Algebra (6th Edition)

false; $-x-x=-2x$
Start by checking if there are two identities for the equations, and then simplify the expression. $-x-x=-x+(-x)=0$ $-x-x=-x-x=0$ $-x-x=-x-x$ $-x-x=-2x$ The first two expressions are identical, while the last one is different, making the statement false.