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Simplifying 147 = -2x + 3(-4x + 7) Reorder the terms: 147 = -2x + 3(7 + -4x) 147 = -2x + (7 * 3 + -4x * 3) 147 = -2x + (21 + -12x) Reorder the terms: 147 = 21 + -2x + -12x Combine like terms: -2x + -12x = -14x 147 = 21 + -14x Solving 147 = 21 + -14x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '14x' to each side of the equation. 147 + 14x = 21 + -14x + 14x Combine like terms: -14x + 14x = 0 147 + 14x = 21 + 0 147 + 14x = 21 Add '-147' to each side of the equation. 147 + -147 + 14x = 21 + -147 Combine like terms: 147 + -147 = 0 0 + 14x = 21 + -147 14x = 21 + -147 Combine like terms: 21 + -147 = -126 14x = -126 Divide each side by '14'. x = -9 Simplifying x = -9
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