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Simplifying -2u + -8 = -2(u + 4) Reorder the terms: -8 + -2u = -2(u + 4) Reorder the terms: -8 + -2u = -2(4 + u) -8 + -2u = (4 * -2 + u * -2) -8 + -2u = (-8 + -2u) Add '8' to each side of the equation. -8 + 8 + -2u = -8 + 8 + -2u Combine like terms: -8 + 8 = 0 0 + -2u = -8 + 8 + -2u -2u = -8 + 8 + -2u Combine like terms: -8 + 8 = 0 -2u = 0 + -2u -2u = -2u Add '2u' to each side of the equation. -2u + 2u = -2u + 2u Combine like terms: -2u + 2u = 0 0 = -2u + 2u Combine like terms: -2u + 2u = 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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