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Simplifying 7x2 + -21 = o Reorder the terms: -21 + 7x2 = o Solving -21 + 7x2 = o Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + 7x2 = 21 + o Combine like terms: -21 + 21 = 0 0 + 7x2 = 21 + o 7x2 = 21 + o Divide each side by '7'. x2 = 3 + 0.1428571429o Simplifying x2 = 3 + 0.1428571429o Reorder the terms: -3 + -0.1428571429o + x2 = 3 + 0.1428571429o + -3 + -0.1428571429o Reorder the terms: -3 + -0.1428571429o + x2 = 3 + -3 + 0.1428571429o + -0.1428571429o Combine like terms: 3 + -3 = 0 -3 + -0.1428571429o + x2 = 0 + 0.1428571429o + -0.1428571429o -3 + -0.1428571429o + x2 = 0.1428571429o + -0.1428571429o Combine like terms: 0.1428571429o + -0.1428571429o = 0.0000000000 -3 + -0.1428571429o + x2 = 0.0000000000 The solution to this equation could not be determined.
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