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Simplifying 7(b + -3) = 86 + 2 Reorder the terms: 7(-3 + b) = 86 + 2 (-3 * 7 + b * 7) = 86 + 2 (-21 + 7b) = 86 + 2 Combine like terms: 86 + 2 = 88 -21 + 7b = 88 Solving -21 + 7b = 88 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + 7b = 88 + 21 Combine like terms: -21 + 21 = 0 0 + 7b = 88 + 21 7b = 88 + 21 Combine like terms: 88 + 21 = 109 7b = 109 Divide each side by '7'. b = 15.57142857 Simplifying b = 15.57142857
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