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Simplifying -7x + 15 = 9 + -4x Reorder the terms: 15 + -7x = 9 + -4x Solving 15 + -7x = 9 + -4x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4x' to each side of the equation. 15 + -7x + 4x = 9 + -4x + 4x Combine like terms: -7x + 4x = -3x 15 + -3x = 9 + -4x + 4x Combine like terms: -4x + 4x = 0 15 + -3x = 9 + 0 15 + -3x = 9 Add '-15' to each side of the equation. 15 + -15 + -3x = 9 + -15 Combine like terms: 15 + -15 = 0 0 + -3x = 9 + -15 -3x = 9 + -15 Combine like terms: 9 + -15 = -6 -3x = -6 Divide each side by '-3'. x = 2 Simplifying x = 2
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