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Simplifying 7b + -2(b + 2) = 5(b + -1) + 1 Reorder the terms: 7b + -2(2 + b) = 5(b + -1) + 1 7b + (2 * -2 + b * -2) = 5(b + -1) + 1 7b + (-4 + -2b) = 5(b + -1) + 1 Reorder the terms: -4 + 7b + -2b = 5(b + -1) + 1 Combine like terms: 7b + -2b = 5b -4 + 5b = 5(b + -1) + 1 Reorder the terms: -4 + 5b = 5(-1 + b) + 1 -4 + 5b = (-1 * 5 + b * 5) + 1 -4 + 5b = (-5 + 5b) + 1 Reorder the terms: -4 + 5b = -5 + 1 + 5b Combine like terms: -5 + 1 = -4 -4 + 5b = -4 + 5b Add '4' to each side of the equation. -4 + 4 + 5b = -4 + 4 + 5b Combine like terms: -4 + 4 = 0 0 + 5b = -4 + 4 + 5b 5b = -4 + 4 + 5b Combine like terms: -4 + 4 = 0 5b = 0 + 5b 5b = 5b Add '-5b' to each side of the equation. 5b + -5b = 5b + -5b Combine like terms: 5b + -5b = 0 0 = 5b + -5b Combine like terms: 5b + -5b = 0 0 = 0 Solving 0 = 0 Couldn't find a variable to solve for. This equation is an identity, all real numbers are solutions.
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