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Simplifying 7x + -15 = -7 + 5x Reorder the terms: -15 + 7x = -7 + 5x Solving -15 + 7x = -7 + 5x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5x' to each side of the equation. -15 + 7x + -5x = -7 + 5x + -5x Combine like terms: 7x + -5x = 2x -15 + 2x = -7 + 5x + -5x Combine like terms: 5x + -5x = 0 -15 + 2x = -7 + 0 -15 + 2x = -7 Add '15' to each side of the equation. -15 + 15 + 2x = -7 + 15 Combine like terms: -15 + 15 = 0 0 + 2x = -7 + 15 2x = -7 + 15 Combine like terms: -7 + 15 = 8 2x = 8 Divide each side by '2'. x = 4 Simplifying x = 4
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