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Simplifying X4 + x3 + -7x2 + -9x + -18 = 0 Reorder the terms: -18 + X4 + -9x + -7x2 + x3 = 0 Solving -18 + X4 + -9x + -7x2 + x3 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '18' to each side of the equation. -18 + X4 + -9x + -7x2 + 18 + x3 = 0 + 18 Reorder the terms: -18 + 18 + X4 + -9x + -7x2 + x3 = 0 + 18 Combine like terms: -18 + 18 = 0 0 + X4 + -9x + -7x2 + x3 = 0 + 18 X4 + -9x + -7x2 + x3 = 0 + 18 Combine like terms: 0 + 18 = 18 X4 + -9x + -7x2 + x3 = 18 Add '9x' to each side of the equation. X4 + -9x + -7x2 + 9x + x3 = 18 + 9x Reorder the terms: X4 + -9x + 9x + -7x2 + x3 = 18 + 9x Combine like terms: -9x + 9x = 0 X4 + 0 + -7x2 + x3 = 18 + 9x X4 + -7x2 + x3 = 18 + 9x Add '7x2' to each side of the equation. X4 + -7x2 + 7x2 + x3 = 18 + 9x + 7x2 Combine like terms: -7x2 + 7x2 = 0 X4 + 0 + x3 = 18 + 9x + 7x2 X4 + x3 = 18 + 9x + 7x2 Add '-1x3' to each side of the equation. X4 + x3 + -1x3 = 18 + 9x + 7x2 + -1x3 Combine like terms: x3 + -1x3 = 0 X4 + 0 = 18 + 9x + 7x2 + -1x3 X4 = 18 + 9x + 7x2 + -1x3 Simplifying X4 = 18 + 9x + 7x2 + -1x3 Reorder the terms: -18 + X4 + -9x + -7x2 + x3 = 18 + 9x + 7x2 + -1x3 + -18 + -9x + -7x2 + x3 Reorder the terms: -18 + X4 + -9x + -7x2 + x3 = 18 + -18 + 9x + -9x + 7x2 + -7x2 + -1x3 + x3 Combine like terms: 18 + -18 = 0 -18 + X4 + -9x + -7x2 + x3 = 0 + 9x + -9x + 7x2 + -7x2 + -1x3 + x3 -18 + X4 + -9x + -7x2 + x3 = 9x + -9x + 7x2 + -7x2 + -1x3 + x3 Combine like terms: 9x + -9x = 0 -18 + X4 + -9x + -7x2 + x3 = 0 + 7x2 + -7x2 + -1x3 + x3 -18 + X4 + -9x + -7x2 + x3 = 7x2 + -7x2 + -1x3 + x3 Combine like terms: 7x2 + -7x2 = 0 -18 + X4 + -9x + -7x2 + x3 = 0 + -1x3 + x3 -18 + X4 + -9x + -7x2 + x3 = -1x3 + x3 Combine like terms: -1x3 + x3 = 0 -18 + X4 + -9x + -7x2 + x3 = 0 The solution to this equation could not be determined.
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