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Simplifying 19 = -2x + 7(x + 7) Reorder the terms: 19 = -2x + 7(7 + x) 19 = -2x + (7 * 7 + x * 7) 19 = -2x + (49 + 7x) Reorder the terms: 19 = 49 + -2x + 7x Combine like terms: -2x + 7x = 5x 19 = 49 + 5x Solving 19 = 49 + 5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5x' to each side of the equation. 19 + -5x = 49 + 5x + -5x Combine like terms: 5x + -5x = 0 19 + -5x = 49 + 0 19 + -5x = 49 Add '-19' to each side of the equation. 19 + -19 + -5x = 49 + -19 Combine like terms: 19 + -19 = 0 0 + -5x = 49 + -19 -5x = 49 + -19 Combine like terms: 49 + -19 = 30 -5x = 30 Divide each side by '-5'. x = -6 Simplifying x = -6
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