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Simplifying 0.2(x + 2) + -0.4(x + 2) = -0.2x + -0.4 Reorder the terms: 0.2(2 + x) + -0.4(x + 2) = -0.2x + -0.4 (2 * 0.2 + x * 0.2) + -0.4(x + 2) = -0.2x + -0.4 (0.4 + 0.2x) + -0.4(x + 2) = -0.2x + -0.4 Reorder the terms: 0.4 + 0.2x + -0.4(2 + x) = -0.2x + -0.4 0.4 + 0.2x + (2 * -0.4 + x * -0.4) = -0.2x + -0.4 0.4 + 0.2x + (-0.8 + -0.4x) = -0.2x + -0.4 Reorder the terms: 0.4 + -0.8 + 0.2x + -0.4x = -0.2x + -0.4 Combine like terms: 0.4 + -0.8 = -0.4 -0.4 + 0.2x + -0.4x = -0.2x + -0.4 Combine like terms: 0.2x + -0.4x = -0.2x -0.4 + -0.2x = -0.2x + -0.4 Reorder the terms: -0.4 + -0.2x = -0.4 + -0.2x Add '0.4' to each side of the equation. -0.4 + 0.4 + -0.2x = -0.4 + 0.4 + -0.2x Combine like terms: -0.4 + 0.4 = 0.0 0.0 + -0.2x = -0.4 + 0.4 + -0.2x -0.2x = -0.4 + 0.4 + -0.2x Combine like terms: -0.4 + 0.4 = 0.0 -0.2x = 0.0 + -0.2x -0.2x = -0.2x Add '0.2x' to each side of the equation. -0.2x + 0.2x = -0.2x + 0.2x Combine like terms: -0.2x + 0.2x = 0.0 0.0 = -0.2x + 0.2x Combine like terms: -0.2x + 0.2x = 0.0 0.0 = 0.0 Solving 0.0 = 0.0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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