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Simplifying 7(x + 4) + 4 = 7x + 7 Reorder the terms: 7(4 + x) + 4 = 7x + 7 (4 * 7 + x * 7) + 4 = 7x + 7 (28 + 7x) + 4 = 7x + 7 Reorder the terms: 28 + 4 + 7x = 7x + 7 Combine like terms: 28 + 4 = 32 32 + 7x = 7x + 7 Reorder the terms: 32 + 7x = 7 + 7x Add '-7x' to each side of the equation. 32 + 7x + -7x = 7 + 7x + -7x Combine like terms: 7x + -7x = 0 32 + 0 = 7 + 7x + -7x 32 = 7 + 7x + -7x Combine like terms: 7x + -7x = 0 32 = 7 + 0 32 = 7 Solving 32 = 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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