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Simplifying 4 + -1(2 + -7x) = -2x + 2 4 + (2 * -1 + -7x * -1) = -2x + 2 4 + (-2 + 7x) = -2x + 2 Combine like terms: 4 + -2 = 2 2 + 7x = -2x + 2 Reorder the terms: 2 + 7x = 2 + -2x Add '-2' to each side of the equation. 2 + -2 + 7x = 2 + -2 + -2x Combine like terms: 2 + -2 = 0 0 + 7x = 2 + -2 + -2x 7x = 2 + -2 + -2x Combine like terms: 2 + -2 = 0 7x = 0 + -2x 7x = -2x Solving 7x = -2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2x' to each side of the equation. 7x + 2x = -2x + 2x Combine like terms: 7x + 2x = 9x 9x = -2x + 2x Combine like terms: -2x + 2x = 0 9x = 0 Divide each side by '9'. x = 0 Simplifying x = 0
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