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Simplifying X4 + -1x2 + 0x + -20 = 0 Anything times zero is zero. X4 + -1x2 + 0x + -20 = 0 Reorder the terms: 0 + -20 + X4 + -1x2 = 0 Combine like terms: 0 + -20 = -20 -20 + X4 + -1x2 = 0 Solving -20 + X4 + -1x2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '20' to each side of the equation. -20 + X4 + 20 + -1x2 = 0 + 20 Reorder the terms: -20 + 20 + X4 + -1x2 = 0 + 20 Combine like terms: -20 + 20 = 0 0 + X4 + -1x2 = 0 + 20 X4 + -1x2 = 0 + 20 Combine like terms: 0 + 20 = 20 X4 + -1x2 = 20 Add 'x2' to each side of the equation. X4 + -1x2 + x2 = 20 + x2 Combine like terms: -1x2 + x2 = 0 X4 + 0 = 20 + x2 X4 = 20 + x2 Simplifying X4 = 20 + x2 Reorder the terms: -20 + X4 + -1x2 = 20 + x2 + -20 + -1x2 Reorder the terms: -20 + X4 + -1x2 = 20 + -20 + x2 + -1x2 Combine like terms: 20 + -20 = 0 -20 + X4 + -1x2 = 0 + x2 + -1x2 -20 + X4 + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -20 + X4 + -1x2 = 0 The solution to this equation could not be determined.
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