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Simplifying 2x + -6(-3x + 5) = 90 Reorder the terms: 2x + -6(5 + -3x) = 90 2x + (5 * -6 + -3x * -6) = 90 2x + (-30 + 18x) = 90 Reorder the terms: -30 + 2x + 18x = 90 Combine like terms: 2x + 18x = 20x -30 + 20x = 90 Solving -30 + 20x = 90 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '30' to each side of the equation. -30 + 30 + 20x = 90 + 30 Combine like terms: -30 + 30 = 0 0 + 20x = 90 + 30 20x = 90 + 30 Combine like terms: 90 + 30 = 120 20x = 120 Divide each side by '20'. x = 6 Simplifying x = 6
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