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Simplifying -7(2x + 4) = 14(-1x + -2) Reorder the terms: -7(4 + 2x) = 14(-1x + -2) (4 * -7 + 2x * -7) = 14(-1x + -2) (-28 + -14x) = 14(-1x + -2) Reorder the terms: -28 + -14x = 14(-2 + -1x) -28 + -14x = (-2 * 14 + -1x * 14) -28 + -14x = (-28 + -14x) Add '28' to each side of the equation. -28 + 28 + -14x = -28 + 28 + -14x Combine like terms: -28 + 28 = 0 0 + -14x = -28 + 28 + -14x -14x = -28 + 28 + -14x Combine like terms: -28 + 28 = 0 -14x = 0 + -14x -14x = -14x Add '14x' to each side of the equation. -14x + 14x = -14x + 14x Combine like terms: -14x + 14x = 0 0 = -14x + 14x Combine like terms: -14x + 14x = 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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