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Simplifying 2(x + -1) + x = 2x + -7 Reorder the terms: 2(-1 + x) + x = 2x + -7 (-1 * 2 + x * 2) + x = 2x + -7 (-2 + 2x) + x = 2x + -7 Combine like terms: 2x + x = 3x -2 + 3x = 2x + -7 Reorder the terms: -2 + 3x = -7 + 2x Solving -2 + 3x = -7 + 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. -2 + 3x + -2x = -7 + 2x + -2x Combine like terms: 3x + -2x = 1x -2 + 1x = -7 + 2x + -2x Combine like terms: 2x + -2x = 0 -2 + 1x = -7 + 0 -2 + 1x = -7 Add '2' to each side of the equation. -2 + 2 + 1x = -7 + 2 Combine like terms: -2 + 2 = 0 0 + 1x = -7 + 2 1x = -7 + 2 Combine like terms: -7 + 2 = -5 1x = -5 Divide each side by '1'. x = -5 Simplifying x = -5
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