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Simplifying -21(1 + -5x) = 30 + 2x (1 * -21 + -5x * -21) = 30 + 2x (-21 + 105x) = 30 + 2x Solving -21 + 105x = 30 + 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. -21 + 105x + -2x = 30 + 2x + -2x Combine like terms: 105x + -2x = 103x -21 + 103x = 30 + 2x + -2x Combine like terms: 2x + -2x = 0 -21 + 103x = 30 + 0 -21 + 103x = 30 Add '21' to each side of the equation. -21 + 21 + 103x = 30 + 21 Combine like terms: -21 + 21 = 0 0 + 103x = 30 + 21 103x = 30 + 21 Combine like terms: 30 + 21 = 51 103x = 51 Divide each side by '103'. x = 0.4951456311 Simplifying x = 0.4951456311
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