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Simplifying 1 = -2(2) + b Multiply -2 * 2 1 = -4 + b Solving 1 = -4 + b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-1b' to each side of the equation. 1 + -1b = -4 + b + -1b Combine like terms: b + -1b = 0 1 + -1b = -4 + 0 1 + -1b = -4 Add '-1' to each side of the equation. 1 + -1 + -1b = -4 + -1 Combine like terms: 1 + -1 = 0 0 + -1b = -4 + -1 -1b = -4 + -1 Combine like terms: -4 + -1 = -5 -1b = -5 Divide each side by '-1'. b = 5 Simplifying b = 5
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