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Simplifying -7 + -2n = 4 + -2(n + 3) Reorder the terms: -7 + -2n = 4 + -2(3 + n) -7 + -2n = 4 + (3 * -2 + n * -2) -7 + -2n = 4 + (-6 + -2n) Combine like terms: 4 + -6 = -2 -7 + -2n = -2 + -2n Add '2n' to each side of the equation. -7 + -2n + 2n = -2 + -2n + 2n Combine like terms: -2n + 2n = 0 -7 + 0 = -2 + -2n + 2n -7 = -2 + -2n + 2n Combine like terms: -2n + 2n = 0 -7 = -2 + 0 -7 = -2 Solving -7 = -2 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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