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Simplifying -3x + (-4.2) = 55 + -11x -3x + -4.2 = 55 + -11x Reorder the terms: -4.2 + -3x = 55 + -11x Solving -4.2 + -3x = 55 + -11x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11x' to each side of the equation. -4.2 + -3x + 11x = 55 + -11x + 11x Combine like terms: -3x + 11x = 8x -4.2 + 8x = 55 + -11x + 11x Combine like terms: -11x + 11x = 0 -4.2 + 8x = 55 + 0 -4.2 + 8x = 55 Add '4.2' to each side of the equation. -4.2 + 4.2 + 8x = 55 + 4.2 Combine like terms: -4.2 + 4.2 = 0.0 0.0 + 8x = 55 + 4.2 8x = 55 + 4.2 Combine like terms: 55 + 4.2 = 59.2 8x = 59.2 Divide each side by '8'. x = 7.4 Simplifying x = 7.4
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