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Simplifying -7(4x + 7) = -7x Reorder the terms: -7(7 + 4x) = -7x (7 * -7 + 4x * -7) = -7x (-49 + -28x) = -7x Solving -49 + -28x = -7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7x' to each side of the equation. -49 + -28x + 7x = -7x + 7x Combine like terms: -28x + 7x = -21x -49 + -21x = -7x + 7x Combine like terms: -7x + 7x = 0 -49 + -21x = 0 Add '49' to each side of the equation. -49 + 49 + -21x = 0 + 49 Combine like terms: -49 + 49 = 0 0 + -21x = 0 + 49 -21x = 0 + 49 Combine like terms: 0 + 49 = 49 -21x = 49 Divide each side by '-21'. x = -2.333333333 Simplifying x = -2.333333333
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