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Simplifying -21 + -7x = -1(-28x + 6) + -8 Reorder the terms: -21 + -7x = -1(6 + -28x) + -8 -21 + -7x = (6 * -1 + -28x * -1) + -8 -21 + -7x = (-6 + 28x) + -8 Reorder the terms: -21 + -7x = -6 + -8 + 28x Combine like terms: -6 + -8 = -14 -21 + -7x = -14 + 28x Solving -21 + -7x = -14 + 28x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-28x' to each side of the equation. -21 + -7x + -28x = -14 + 28x + -28x Combine like terms: -7x + -28x = -35x -21 + -35x = -14 + 28x + -28x Combine like terms: 28x + -28x = 0 -21 + -35x = -14 + 0 -21 + -35x = -14 Add '21' to each side of the equation. -21 + 21 + -35x = -14 + 21 Combine like terms: -21 + 21 = 0 0 + -35x = -14 + 21 -35x = -14 + 21 Combine like terms: -14 + 21 = 7 -35x = 7 Divide each side by '-35'. x = -0.2 Simplifying x = -0.2
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