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Simplifying 7(x + 3) + 3 = 7x + -7 Reorder the terms: 7(3 + x) + 3 = 7x + -7 (3 * 7 + x * 7) + 3 = 7x + -7 (21 + 7x) + 3 = 7x + -7 Reorder the terms: 21 + 3 + 7x = 7x + -7 Combine like terms: 21 + 3 = 24 24 + 7x = 7x + -7 Reorder the terms: 24 + 7x = -7 + 7x Add '-7x' to each side of the equation. 24 + 7x + -7x = -7 + 7x + -7x Combine like terms: 7x + -7x = 0 24 + 0 = -7 + 7x + -7x 24 = -7 + 7x + -7x Combine like terms: 7x + -7x = 0 24 = -7 + 0 24 = -7 Solving 24 = -7 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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