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Simplifying 21(x + -4) + 2 = 0 Reorder the terms: 21(-4 + x) + 2 = 0 (-4 * 21 + x * 21) + 2 = 0 (-84 + 21x) + 2 = 0 Reorder the terms: -84 + 2 + 21x = 0 Combine like terms: -84 + 2 = -82 -82 + 21x = 0 Solving -82 + 21x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '82' to each side of the equation. -82 + 82 + 21x = 0 + 82 Combine like terms: -82 + 82 = 0 0 + 21x = 0 + 82 21x = 0 + 82 Combine like terms: 0 + 82 = 82 21x = 82 Divide each side by '21'. x = 3.904761905 Simplifying x = 3.904761905
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