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Simplifying 2x + 4(x + -3) = 3x + -15 Reorder the terms: 2x + 4(-3 + x) = 3x + -15 2x + (-3 * 4 + x * 4) = 3x + -15 2x + (-12 + 4x) = 3x + -15 Reorder the terms: -12 + 2x + 4x = 3x + -15 Combine like terms: 2x + 4x = 6x -12 + 6x = 3x + -15 Reorder the terms: -12 + 6x = -15 + 3x Solving -12 + 6x = -15 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. -12 + 6x + -3x = -15 + 3x + -3x Combine like terms: 6x + -3x = 3x -12 + 3x = -15 + 3x + -3x Combine like terms: 3x + -3x = 0 -12 + 3x = -15 + 0 -12 + 3x = -15 Add '12' to each side of the equation. -12 + 12 + 3x = -15 + 12 Combine like terms: -12 + 12 = 0 0 + 3x = -15 + 12 3x = -15 + 12 Combine like terms: -15 + 12 = -3 3x = -3 Divide each side by '3'. x = -1 Simplifying x = -1
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