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Simplifying -3 + -1(x + -7) = 2(3x + -15) Reorder the terms: -3 + -1(-7 + x) = 2(3x + -15) -3 + (-7 * -1 + x * -1) = 2(3x + -15) -3 + (7 + -1x) = 2(3x + -15) Combine like terms: -3 + 7 = 4 4 + -1x = 2(3x + -15) Reorder the terms: 4 + -1x = 2(-15 + 3x) 4 + -1x = (-15 * 2 + 3x * 2) 4 + -1x = (-30 + 6x) Solving 4 + -1x = -30 + 6x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6x' to each side of the equation. 4 + -1x + -6x = -30 + 6x + -6x Combine like terms: -1x + -6x = -7x 4 + -7x = -30 + 6x + -6x Combine like terms: 6x + -6x = 0 4 + -7x = -30 + 0 4 + -7x = -30 Add '-4' to each side of the equation. 4 + -4 + -7x = -30 + -4 Combine like terms: 4 + -4 = 0 0 + -7x = -30 + -4 -7x = -30 + -4 Combine like terms: -30 + -4 = -34 -7x = -34 Divide each side by '-7'. x = 4.857142857 Simplifying x = 4.857142857
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