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Simplifying 4(x + 5) + 3 = 4x + 7 Reorder the terms: 4(5 + x) + 3 = 4x + 7 (5 * 4 + x * 4) + 3 = 4x + 7 (20 + 4x) + 3 = 4x + 7 Reorder the terms: 20 + 3 + 4x = 4x + 7 Combine like terms: 20 + 3 = 23 23 + 4x = 4x + 7 Reorder the terms: 23 + 4x = 7 + 4x Add '-4x' to each side of the equation. 23 + 4x + -4x = 7 + 4x + -4x Combine like terms: 4x + -4x = 0 23 + 0 = 7 + 4x + -4x 23 = 7 + 4x + -4x Combine like terms: 4x + -4x = 0 23 = 7 + 0 23 = 7 Solving 23 = 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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