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Simplifying -450 = -30(-3b) Remove parenthesis around (-3b) -450 = -30 * -3b Multiply -30 * -3 -450 = 90b Solving -450 = 90b Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-90b' to each side of the equation. -450 + -90b = 90b + -90b Combine like terms: 90b + -90b = 0 -450 + -90b = 0 Add '450' to each side of the equation. -450 + 450 + -90b = 0 + 450 Combine like terms: -450 + 450 = 0 0 + -90b = 0 + 450 -90b = 0 + 450 Combine like terms: 0 + 450 = 450 -90b = 450 Divide each side by '-90'. b = -5 Simplifying b = -5
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