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Simplifying 21x + -3 = 40x Reorder the terms: -3 + 21x = 40x Solving -3 + 21x = 40x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-40x' to each side of the equation. -3 + 21x + -40x = 40x + -40x Combine like terms: 21x + -40x = -19x -3 + -19x = 40x + -40x Combine like terms: 40x + -40x = 0 -3 + -19x = 0 Add '3' to each side of the equation. -3 + 3 + -19x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -19x = 0 + 3 -19x = 0 + 3 Combine like terms: 0 + 3 = 3 -19x = 3 Divide each side by '-19'. x = -0.1578947368 Simplifying x = -0.1578947368
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