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Simplifying 4 + (2x + 1) = 2x + -7 Reorder the terms: 4 + (1 + 2x) = 2x + -7 Remove parenthesis around (1 + 2x) 4 + 1 + 2x = 2x + -7 Combine like terms: 4 + 1 = 5 5 + 2x = 2x + -7 Reorder the terms: 5 + 2x = -7 + 2x Add '-2x' to each side of the equation. 5 + 2x + -2x = -7 + 2x + -2x Combine like terms: 2x + -2x = 0 5 + 0 = -7 + 2x + -2x 5 = -7 + 2x + -2x Combine like terms: 2x + -2x = 0 5 = -7 + 0 5 = -7 Solving 5 = -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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