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Simplifying (2x + 4)(4) = (8x + 16) Reorder the terms: (4 + 2x)(4) = (8x + 16) Reorder the terms for easier multiplication: 4(4 + 2x) = (8x + 16) (4 * 4 + 2x * 4) = (8x + 16) (16 + 8x) = (8x + 16) Reorder the terms: 16 + 8x = (16 + 8x) Remove parenthesis around (16 + 8x) 16 + 8x = 16 + 8x Add '-16' to each side of the equation. 16 + -16 + 8x = 16 + -16 + 8x Combine like terms: 16 + -16 = 0 0 + 8x = 16 + -16 + 8x 8x = 16 + -16 + 8x Combine like terms: 16 + -16 = 0 8x = 0 + 8x 8x = 8x Add '-8x' to each side of the equation. 8x + -8x = 8x + -8x Combine like terms: 8x + -8x = 0 0 = 8x + -8x Combine like terms: 8x + -8x = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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