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Simplifying X4 + 7x3 + -4x2 + -28 = 0 Reorder the terms: -28 + X4 + -4x2 + 7x3 = 0 Solving -28 + X4 + -4x2 + 7x3 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '28' to each side of the equation. -28 + X4 + -4x2 + 28 + 7x3 = 0 + 28 Reorder the terms: -28 + 28 + X4 + -4x2 + 7x3 = 0 + 28 Combine like terms: -28 + 28 = 0 0 + X4 + -4x2 + 7x3 = 0 + 28 X4 + -4x2 + 7x3 = 0 + 28 Combine like terms: 0 + 28 = 28 X4 + -4x2 + 7x3 = 28 Add '4x2' to each side of the equation. X4 + -4x2 + 4x2 + 7x3 = 28 + 4x2 Combine like terms: -4x2 + 4x2 = 0 X4 + 0 + 7x3 = 28 + 4x2 X4 + 7x3 = 28 + 4x2 Add '-7x3' to each side of the equation. X4 + 7x3 + -7x3 = 28 + 4x2 + -7x3 Combine like terms: 7x3 + -7x3 = 0 X4 + 0 = 28 + 4x2 + -7x3 X4 = 28 + 4x2 + -7x3 Simplifying X4 = 28 + 4x2 + -7x3 Reorder the terms: -28 + X4 + -4x2 + 7x3 = 28 + 4x2 + -7x3 + -28 + -4x2 + 7x3 Reorder the terms: -28 + X4 + -4x2 + 7x3 = 28 + -28 + 4x2 + -4x2 + -7x3 + 7x3 Combine like terms: 28 + -28 = 0 -28 + X4 + -4x2 + 7x3 = 0 + 4x2 + -4x2 + -7x3 + 7x3 -28 + X4 + -4x2 + 7x3 = 4x2 + -4x2 + -7x3 + 7x3 Combine like terms: 4x2 + -4x2 = 0 -28 + X4 + -4x2 + 7x3 = 0 + -7x3 + 7x3 -28 + X4 + -4x2 + 7x3 = -7x3 + 7x3 Combine like terms: -7x3 + 7x3 = 0 -28 + X4 + -4x2 + 7x3 = 0 The solution to this equation could not be determined.
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