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Simplifying -4 = -12 + -3x Solving -4 = -12 + -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. -4 + 3x = -12 + -3x + 3x Combine like terms: -3x + 3x = 0 -4 + 3x = -12 + 0 -4 + 3x = -12 Add '4' to each side of the equation. -4 + 4 + 3x = -12 + 4 Combine like terms: -4 + 4 = 0 0 + 3x = -12 + 4 3x = -12 + 4 Combine like terms: -12 + 4 = -8 3x = -8 Divide each side by '3'. x = -2.666666667 Simplifying x = -2.666666667
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