1/(x - 1) + 3/(x + 1) = 4/x
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Step-by-step explanation:
1/(x-1) + 3/(x+1) = 4/x
x+1 + 3x-3/(x-1) (x+1) = 4/x
4x-2/x²-1 = 4/x
CROSS MULTIPLICATION
4(x²-1) = x(4x-2)
4x²-4 = 4x²-2x
4x²-4x²-4 = -2x
-4 = -2x
-(-4) = -(-2x)
4 = 2x
4/2 = x
2 = x
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