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Simplifying 7 = -7 + -2b Solving 7 = -7 + -2b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '2b' to each side of the equation. 7 + 2b = -7 + -2b + 2b Combine like terms: -2b + 2b = 0 7 + 2b = -7 + 0 7 + 2b = -7 Add '-7' to each side of the equation. 7 + -7 + 2b = -7 + -7 Combine like terms: 7 + -7 = 0 0 + 2b = -7 + -7 2b = -7 + -7 Combine like terms: -7 + -7 = -14 2b = -14 Divide each side by '2'. b = -7 Simplifying b = -7
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