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