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KatRina [158]
2 years ago
7

Solve

\frac{a-1}{a-3} =\frac{a+1}{a-4}" alt="\frac{a-1}{a-3} =\frac{a+1}{a-4}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
bixtya [17]2 years ago
3 0

Answer:

a=\frac{7}{3}

Step-by-step explanation:

\frac{a-1}{a-3}=\frac{a+1}{a-4}

(a-1)(a-4)=(a-3)(a+1)

a^2-5a+4=a^2-2a-3

-5a+4=-2a-3

-3a+4=-3

-3a=-7

a=\frac{7}{3}

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