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Simplifying -7(x + 2) + -7 = -14x + 7(x + 4) Reorder the terms: -7(2 + x) + -7 = -14x + 7(x + 4) (2 * -7 + x * -7) + -7 = -14x + 7(x + 4) (-14 + -7x) + -7 = -14x + 7(x + 4) Reorder the terms: -14 + -7 + -7x = -14x + 7(x + 4) Combine like terms: -14 + -7 = -21 -21 + -7x = -14x + 7(x + 4) Reorder the terms: -21 + -7x = -14x + 7(4 + x) -21 + -7x = -14x + (4 * 7 + x * 7) -21 + -7x = -14x + (28 + 7x) Reorder the terms: -21 + -7x = 28 + -14x + 7x Combine like terms: -14x + 7x = -7x -21 + -7x = 28 + -7x Add '7x' to each side of the equation. -21 + -7x + 7x = 28 + -7x + 7x Combine like terms: -7x + 7x = 0 -21 + 0 = 28 + -7x + 7x -21 = 28 + -7x + 7x Combine like terms: -7x + 7x = 0 -21 = 28 + 0 -21 = 28 Solving -21 = 28 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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