## Intermediate Algebra for College Students (7th Edition)

Algebraic expression translation: $x - (8-x)$ Simplified form: $2x-8$
Let $x$ = the unknown number The difference between eight and the number: $8-x$ A number decreased by the difference between eight and the number: $x - (8-x)$ Simplifying gives: $=x-8-(-x) \\=x-8+x \\=2x-8$