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Simplifying 7(x + 5) + 4 = 7x + 8 Reorder the terms: 7(5 + x) + 4 = 7x + 8 (5 * 7 + x * 7) + 4 = 7x + 8 (35 + 7x) + 4 = 7x + 8 Reorder the terms: 35 + 4 + 7x = 7x + 8 Combine like terms: 35 + 4 = 39 39 + 7x = 7x + 8 Reorder the terms: 39 + 7x = 8 + 7x Add '-7x' to each side of the equation. 39 + 7x + -7x = 8 + 7x + -7x Combine like terms: 7x + -7x = 0 39 + 0 = 8 + 7x + -7x 39 = 8 + 7x + -7x Combine like terms: 7x + -7x = 0 39 = 8 + 0 39 = 8 Solving 39 = 8 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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