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Simplifying -4x + -9 = 7x + 12 Reorder the terms: -9 + -4x = 7x + 12 Reorder the terms: -9 + -4x = 12 + 7x Solving -9 + -4x = 12 + 7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7x' to each side of the equation. -9 + -4x + -7x = 12 + 7x + -7x Combine like terms: -4x + -7x = -11x -9 + -11x = 12 + 7x + -7x Combine like terms: 7x + -7x = 0 -9 + -11x = 12 + 0 -9 + -11x = 12 Add '9' to each side of the equation. -9 + 9 + -11x = 12 + 9 Combine like terms: -9 + 9 = 0 0 + -11x = 12 + 9 -11x = 12 + 9 Combine like terms: 12 + 9 = 21 -11x = 21 Divide each side by '-11'. x = -1.909090909 Simplifying x = -1.909090909
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