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Simplifying 7(x + 7) = 7(x + 13) Reorder the terms: 7(7 + x) = 7(x + 13) (7 * 7 + x * 7) = 7(x + 13) (49 + 7x) = 7(x + 13) Reorder the terms: 49 + 7x = 7(13 + x) 49 + 7x = (13 * 7 + x * 7) 49 + 7x = (91 + 7x) Add '-7x' to each side of the equation. 49 + 7x + -7x = 91 + 7x + -7x Combine like terms: 7x + -7x = 0 49 + 0 = 91 + 7x + -7x 49 = 91 + 7x + -7x Combine like terms: 7x + -7x = 0 49 = 91 + 0 49 = 91 Solving 49 = 91 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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