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Simplifying 4x(4x + -5b) + 3 = 0 Reorder the terms: 4x(-5b + 4x) + 3 = 0 (-5b * 4x + 4x * 4x) + 3 = 0 (-20bx + 16x2) + 3 = 0 Reorder the terms: 3 + -20bx + 16x2 = 0 Solving 3 + -20bx + 16x2 = 0 Solving for variable 'b'. Move all terms containing b to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -20bx + -3 + 16x2 = 0 + -3 Reorder the terms: 3 + -3 + -20bx + 16x2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -20bx + 16x2 = 0 + -3 -20bx + 16x2 = 0 + -3 Combine like terms: 0 + -3 = -3 -20bx + 16x2 = -3 Add '-16x2' to each side of the equation. -20bx + 16x2 + -16x2 = -3 + -16x2 Combine like terms: 16x2 + -16x2 = 0 -20bx + 0 = -3 + -16x2 -20bx = -3 + -16x2 Divide each side by '-20x'. b = 0.15x-1 + 0.8x Simplifying b = 0.15x-1 + 0.8x
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