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Simplifying 7(x + -7) = 7x + 14 Reorder the terms: 7(-7 + x) = 7x + 14 (-7 * 7 + x * 7) = 7x + 14 (-49 + 7x) = 7x + 14 Reorder the terms: -49 + 7x = 14 + 7x Add '-7x' to each side of the equation. -49 + 7x + -7x = 14 + 7x + -7x Combine like terms: 7x + -7x = 0 -49 + 0 = 14 + 7x + -7x -49 = 14 + 7x + -7x Combine like terms: 7x + -7x = 0 -49 = 14 + 0 -49 = 14 Solving -49 = 14 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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