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Simplifying -21x + 7(-4x + 2) = 14 Reorder the terms: -21x + 7(2 + -4x) = 14 -21x + (2 * 7 + -4x * 7) = 14 -21x + (14 + -28x) = 14 Reorder the terms: 14 + -21x + -28x = 14 Combine like terms: -21x + -28x = -49x 14 + -49x = 14 Add '-14' to each side of the equation. 14 + -14 + -49x = 14 + -14 Combine like terms: 14 + -14 = 0 0 + -49x = 14 + -14 -49x = 14 + -14 Combine like terms: 14 + -14 = 0 -49x = 0 Solving -49x = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '-49'. x = 0 Simplifying x = 0
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