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Simplifying 49 + 2x + -1(4x + 28) = 55 Reorder the terms: 49 + 2x + -1(28 + 4x) = 55 49 + 2x + (28 * -1 + 4x * -1) = 55 49 + 2x + (-28 + -4x) = 55 Reorder the terms: 49 + -28 + 2x + -4x = 55 Combine like terms: 49 + -28 = 21 21 + 2x + -4x = 55 Combine like terms: 2x + -4x = -2x 21 + -2x = 55 Solving 21 + -2x = 55 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + -2x = 55 + -21 Combine like terms: 21 + -21 = 0 0 + -2x = 55 + -21 -2x = 55 + -21 Combine like terms: 55 + -21 = 34 -2x = 34 Divide each side by '-2'. x = -17 Simplifying x = -17
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