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Simplifying (-9x + -12) = 30 Reorder the terms: (-12 + -9x) = 30 Remove parenthesis around (-12 + -9x) -12 + -9x = 30 Solving -12 + -9x = 30 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + -9x = 30 + 12 Combine like terms: -12 + 12 = 0 0 + -9x = 30 + 12 -9x = 30 + 12 Combine like terms: 30 + 12 = 42 -9x = 42 Divide each side by '-9'. x = -4.666666667 Simplifying x = -4.666666667
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