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Simplifying Algebraic Expressions Simplify by using the distributive property and combining like terms. `(-6x-9)+(-x+8) = `
`(x+7)-(-6x-9) = `
`-5(-x+8)-6x = `
`6(-x+8)+(-8x^2-3x+3) = `
`-7x-1`
`7x+16`
`-x-40`
`-8x^2-9x+51`