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Simplifying -1(7x + -2) = -7x + 2 Reorder the terms: -1(-2 + 7x) = -7x + 2 (-2 * -1 + 7x * -1) = -7x + 2 (2 + -7x) = -7x + 2 Reorder the terms: 2 + -7x = 2 + -7x Add '-2' to each side of the equation. 2 + -2 + -7x = 2 + -2 + -7x Combine like terms: 2 + -2 = 0 0 + -7x = 2 + -2 + -7x -7x = 2 + -2 + -7x Combine like terms: 2 + -2 = 0 -7x = 0 + -7x -7x = -7x Add '7x' to each side of the equation. -7x + 7x = -7x + 7x Combine like terms: -7x + 7x = 0 0 = -7x + 7x Combine like terms: -7x + 7x = 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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