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Simplifying x + -15 = 2(x + 7) Reorder the terms: -15 + x = 2(x + 7) Reorder the terms: -15 + x = 2(7 + x) -15 + x = (7 * 2 + x * 2) -15 + x = (14 + 2x) Solving -15 + x = 14 + 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. -15 + x + -2x = 14 + 2x + -2x Combine like terms: x + -2x = -1x -15 + -1x = 14 + 2x + -2x Combine like terms: 2x + -2x = 0 -15 + -1x = 14 + 0 -15 + -1x = 14 Add '15' to each side of the equation. -15 + 15 + -1x = 14 + 15 Combine like terms: -15 + 15 = 0 0 + -1x = 14 + 15 -1x = 14 + 15 Combine like terms: 14 + 15 = 29 -1x = 29 Divide each side by '-1'. x = -29 Simplifying x = -29
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