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Simplifying -5 + 12x = 5(14x + 21) + x Reorder the terms: -5 + 12x = 5(21 + 14x) + x -5 + 12x = (21 * 5 + 14x * 5) + x -5 + 12x = (105 + 70x) + x Combine like terms: 70x + x = 71x -5 + 12x = 105 + 71x Solving -5 + 12x = 105 + 71x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-71x' to each side of the equation. -5 + 12x + -71x = 105 + 71x + -71x Combine like terms: 12x + -71x = -59x -5 + -59x = 105 + 71x + -71x Combine like terms: 71x + -71x = 0 -5 + -59x = 105 + 0 -5 + -59x = 105 Add '5' to each side of the equation. -5 + 5 + -59x = 105 + 5 Combine like terms: -5 + 5 = 0 0 + -59x = 105 + 5 -59x = 105 + 5 Combine like terms: 105 + 5 = 110 -59x = 110 Divide each side by '-59'. x = -1.86440678 Simplifying x = -1.86440678
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