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Simplifying -1(x + 2) + -7 = -30 + 2x Reorder the terms: -1(2 + x) + -7 = -30 + 2x (2 * -1 + x * -1) + -7 = -30 + 2x (-2 + -1x) + -7 = -30 + 2x Reorder the terms: -2 + -7 + -1x = -30 + 2x Combine like terms: -2 + -7 = -9 -9 + -1x = -30 + 2x Solving -9 + -1x = -30 + 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. -9 + -1x + -2x = -30 + 2x + -2x Combine like terms: -1x + -2x = -3x -9 + -3x = -30 + 2x + -2x Combine like terms: 2x + -2x = 0 -9 + -3x = -30 + 0 -9 + -3x = -30 Add '9' to each side of the equation. -9 + 9 + -3x = -30 + 9 Combine like terms: -9 + 9 = 0 0 + -3x = -30 + 9 -3x = -30 + 9 Combine like terms: -30 + 9 = -21 -3x = -21 Divide each side by '-3'. x = 7 Simplifying x = 7
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