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Over [174]
3 years ago
14

X-1 / x-1 = 1 What is x?

Mathematics
1 answer:
lions [1.4K]3 years ago
4 0

Answer:

\large\boxed{x\in\mathbb{R}-\{1\}}\to\text{any real number except 1}

Step-by-step explanation:

\dfrac{x-1}{x-1}=1\\\\\text{Domain:}\ x-1\neq0\qquad\text{add 1 to both sides}\\\\x\neq1\\\\\text{We know:}\ \dfrac{a}{a}=1\ \text{for any real number except 0}.\\\\\text{Therefore}\ x\ \text{is any real number except 1}.

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