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Simplifying -1(2b + -2) + -1 = 4 + -1(2b + 2) Reorder the terms: -1(-2 + 2b) + -1 = 4 + -1(2b + 2) (-2 * -1 + 2b * -1) + -1 = 4 + -1(2b + 2) (2 + -2b) + -1 = 4 + -1(2b + 2) Reorder the terms: 2 + -1 + -2b = 4 + -1(2b + 2) Combine like terms: 2 + -1 = 1 1 + -2b = 4 + -1(2b + 2) Reorder the terms: 1 + -2b = 4 + -1(2 + 2b) 1 + -2b = 4 + (2 * -1 + 2b * -1) 1 + -2b = 4 + (-2 + -2b) Combine like terms: 4 + -2 = 2 1 + -2b = 2 + -2b Add '2b' to each side of the equation. 1 + -2b + 2b = 2 + -2b + 2b Combine like terms: -2b + 2b = 0 1 + 0 = 2 + -2b + 2b 1 = 2 + -2b + 2b Combine like terms: -2b + 2b = 0 1 = 2 + 0 1 = 2 Solving 1 = 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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