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Simplifying 7x + 2x + -5 = 4 Reorder the terms: -5 + 7x + 2x = 4 Combine like terms: 7x + 2x = 9x -5 + 9x = 4 Solving -5 + 9x = 4 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + 9x = 4 + 5 Combine like terms: -5 + 5 = 0 0 + 9x = 4 + 5 9x = 4 + 5 Combine like terms: 4 + 5 = 9 9x = 9 Divide each side by '9'. x = 1 Simplifying x = 1
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