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Simplifying 4 + -2(b + -9) = b + -9 Reorder the terms: 4 + -2(-9 + b) = b + -9 4 + (-9 * -2 + b * -2) = b + -9 4 + (18 + -2b) = b + -9 Combine like terms: 4 + 18 = 22 22 + -2b = b + -9 Reorder the terms: 22 + -2b = -9 + b Solving 22 + -2b = -9 + 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. 22 + -2b + -1b = -9 + b + -1b Combine like terms: -2b + -1b = -3b 22 + -3b = -9 + b + -1b Combine like terms: b + -1b = 0 22 + -3b = -9 + 0 22 + -3b = -9 Add '-22' to each side of the equation. 22 + -22 + -3b = -9 + -22 Combine like terms: 22 + -22 = 0 0 + -3b = -9 + -22 -3b = -9 + -22 Combine like terms: -9 + -22 = -31 -3b = -31 Divide each side by '-3'. b = 10.33333333 Simplifying b = 10.33333333
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