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Simplifying 2x + -4(x + -5) = -7 + 5x + -15 Reorder the terms: 2x + -4(-5 + x) = -7 + 5x + -15 2x + (-5 * -4 + x * -4) = -7 + 5x + -15 2x + (20 + -4x) = -7 + 5x + -15 Reorder the terms: 20 + 2x + -4x = -7 + 5x + -15 Combine like terms: 2x + -4x = -2x 20 + -2x = -7 + 5x + -15 Reorder the terms: 20 + -2x = -7 + -15 + 5x Combine like terms: -7 + -15 = -22 20 + -2x = -22 + 5x Solving 20 + -2x = -22 + 5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5x' to each side of the equation. 20 + -2x + -5x = -22 + 5x + -5x Combine like terms: -2x + -5x = -7x 20 + -7x = -22 + 5x + -5x Combine like terms: 5x + -5x = 0 20 + -7x = -22 + 0 20 + -7x = -22 Add '-20' to each side of the equation. 20 + -20 + -7x = -22 + -20 Combine like terms: 20 + -20 = 0 0 + -7x = -22 + -20 -7x = -22 + -20 Combine like terms: -22 + -20 = -42 -7x = -42 Divide each side by '-7'. x = 6 Simplifying x = 6
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