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Simplifying 7x + -14(x + 1) = -7x + 20 Reorder the terms: 7x + -14(1 + x) = -7x + 20 7x + (1 * -14 + x * -14) = -7x + 20 7x + (-14 + -14x) = -7x + 20 Reorder the terms: -14 + 7x + -14x = -7x + 20 Combine like terms: 7x + -14x = -7x -14 + -7x = -7x + 20 Reorder the terms: -14 + -7x = 20 + -7x Add '7x' to each side of the equation. -14 + -7x + 7x = 20 + -7x + 7x Combine like terms: -7x + 7x = 0 -14 + 0 = 20 + -7x + 7x -14 = 20 + -7x + 7x Combine like terms: -7x + 7x = 0 -14 = 20 + 0 -14 = 20 Solving -14 = 20 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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