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Simplifying 7(x + 9) = 9 + 7x + 19 Reorder the terms: 7(9 + x) = 9 + 7x + 19 (9 * 7 + x * 7) = 9 + 7x + 19 (63 + 7x) = 9 + 7x + 19 Reorder the terms: 63 + 7x = 9 + 19 + 7x Combine like terms: 9 + 19 = 28 63 + 7x = 28 + 7x Add '-7x' to each side of the equation. 63 + 7x + -7x = 28 + 7x + -7x Combine like terms: 7x + -7x = 0 63 + 0 = 28 + 7x + -7x 63 = 28 + 7x + -7x Combine like terms: 7x + -7x = 0 63 = 28 + 0 63 = 28 Solving 63 = 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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