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Simplifying 6x2 + -9 = 15 Reorder the terms: -9 + 6x2 = 15 Solving -9 + 6x2 = 15 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + 6x2 = 15 + 9 Combine like terms: -9 + 9 = 0 0 + 6x2 = 15 + 9 6x2 = 15 + 9 Combine like terms: 15 + 9 = 24 6x2 = 24 Divide each side by '6'. x2 = 4 Simplifying x2 = 4 Take the square root of each side: x = {-2, 2}
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