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Simplifying 1 + -1(-4x) + 7 = -2x + -12 Remove parenthesis around (-4x) 1 + -1 * -4x + 7 = -2x + -12 Multiply -1 * -4 1 + 4x + 7 = -2x + -12 Reorder the terms: 1 + 7 + 4x = -2x + -12 Combine like terms: 1 + 7 = 8 8 + 4x = -2x + -12 Reorder the terms: 8 + 4x = -12 + -2x Solving 8 + 4x = -12 + -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. 8 + 4x + 2x = -12 + -2x + 2x Combine like terms: 4x + 2x = 6x 8 + 6x = -12 + -2x + 2x Combine like terms: -2x + 2x = 0 8 + 6x = -12 + 0 8 + 6x = -12 Add '-8' to each side of the equation. 8 + -8 + 6x = -12 + -8 Combine like terms: 8 + -8 = 0 0 + 6x = -12 + -8 6x = -12 + -8 Combine like terms: -12 + -8 = -20 6x = -20 Divide each side by '6'. x = -3.333333333 Simplifying x = -3.333333333
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