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Simplifying X4 + -7x3 + 12x2 + 4 = 12 Reorder the terms: 4 + X4 + 12x2 + -7x3 = 12 Solving 4 + X4 + 12x2 + -7x3 = 12 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + X4 + 12x2 + -4 + -7x3 = 12 + -4 Reorder the terms: 4 + -4 + X4 + 12x2 + -7x3 = 12 + -4 Combine like terms: 4 + -4 = 0 0 + X4 + 12x2 + -7x3 = 12 + -4 X4 + 12x2 + -7x3 = 12 + -4 Combine like terms: 12 + -4 = 8 X4 + 12x2 + -7x3 = 8 Add '-12x2' to each side of the equation. X4 + 12x2 + -12x2 + -7x3 = 8 + -12x2 Combine like terms: 12x2 + -12x2 = 0 X4 + 0 + -7x3 = 8 + -12x2 X4 + -7x3 = 8 + -12x2 Add '7x3' to each side of the equation. X4 + -7x3 + 7x3 = 8 + -12x2 + 7x3 Combine like terms: -7x3 + 7x3 = 0 X4 + 0 = 8 + -12x2 + 7x3 X4 = 8 + -12x2 + 7x3 Simplifying X4 = 8 + -12x2 + 7x3 Reorder the terms: -8 + X4 + 12x2 + -7x3 = 8 + -12x2 + 7x3 + -8 + 12x2 + -7x3 Reorder the terms: -8 + X4 + 12x2 + -7x3 = 8 + -8 + -12x2 + 12x2 + 7x3 + -7x3 Combine like terms: 8 + -8 = 0 -8 + X4 + 12x2 + -7x3 = 0 + -12x2 + 12x2 + 7x3 + -7x3 -8 + X4 + 12x2 + -7x3 = -12x2 + 12x2 + 7x3 + -7x3 Combine like terms: -12x2 + 12x2 = 0 -8 + X4 + 12x2 + -7x3 = 0 + 7x3 + -7x3 -8 + X4 + 12x2 + -7x3 = 7x3 + -7x3 Combine like terms: 7x3 + -7x3 = 0 -8 + X4 + 12x2 + -7x3 = 0 The solution to this equation could not be determined.
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