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Simplifying X4 + 7x2 = 78 Solving X4 + 7x2 = 78 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-7x2' to each side of the equation. X4 + 7x2 + -7x2 = 78 + -7x2 Combine like terms: 7x2 + -7x2 = 0 X4 + 0 = 78 + -7x2 X4 = 78 + -7x2 Simplifying X4 = 78 + -7x2 Reorder the terms: -78 + X4 + 7x2 = 78 + -7x2 + -78 + 7x2 Reorder the terms: -78 + X4 + 7x2 = 78 + -78 + -7x2 + 7x2 Combine like terms: 78 + -78 = 0 -78 + X4 + 7x2 = 0 + -7x2 + 7x2 -78 + X4 + 7x2 = -7x2 + 7x2 Combine like terms: -7x2 + 7x2 = 0 -78 + X4 + 7x2 = 0 The solution to this equation could not be determined.
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