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Simplifying -3 = -3(7x + 8) Reorder the terms: -3 = -3(8 + 7x) -3 = (8 * -3 + 7x * -3) -3 = (-24 + -21x) Solving -3 = -24 + -21x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '21x' to each side of the equation. -3 + 21x = -24 + -21x + 21x Combine like terms: -21x + 21x = 0 -3 + 21x = -24 + 0 -3 + 21x = -24 Add '3' to each side of the equation. -3 + 3 + 21x = -24 + 3 Combine like terms: -3 + 3 = 0 0 + 21x = -24 + 3 21x = -24 + 3 Combine like terms: -24 + 3 = -21 21x = -21 Divide each side by '21'. x = -1 Simplifying x = -1
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