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Simplifying -3 + 4(0.75x + -3) = -12 Reorder the terms: -3 + 4(-3 + 0.75x) = -12 -3 + (-3 * 4 + 0.75x * 4) = -12 -3 + (-12 + 3x) = -12 Combine like terms: -3 + -12 = -15 -15 + 3x = -12 Solving -15 + 3x = -12 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 15 + 3x = -12 + 15 Combine like terms: -15 + 15 = 0 0 + 3x = -12 + 15 3x = -12 + 15 Combine like terms: -12 + 15 = 3 3x = 3 Divide each side by '3'. x = 1 Simplifying x = 1
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