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Simplifying 4.2x(-9) = 3(1.2x + 4) Reorder the terms for easier multiplication: 4.2 * -9x = 3(1.2x + 4) Multiply 4.2 * -9 -37.8x = 3(1.2x + 4) Reorder the terms: -37.8x = 3(4 + 1.2x) -37.8x = (4 * 3 + 1.2x * 3) -37.8x = (12 + 3.6x) Solving -37.8x = 12 + 3.6x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.6x' to each side of the equation. -37.8x + -3.6x = 12 + 3.6x + -3.6x Combine like terms: -37.8x + -3.6x = -41.4x -41.4x = 12 + 3.6x + -3.6x Combine like terms: 3.6x + -3.6x = 0.0 -41.4x = 12 + 0.0 -41.4x = 12 Divide each side by '-41.4'. x = -0.2898550725 Simplifying x = -0.2898550725
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