1.

The following question ​

Answer»

ong>Answer:

X=9

\frac{1 + x}{1 - x}  =  \frac{5}{ - 4}

Can be WRITTEN as

\frac{1 + x}{1 - x}  =  \frac{ - 5}{4}

(1 + x)(4) = (1 - x) (- 5)

4 + 4x =  - 5 + 5x

4 + 5 = 5x - 4x

9 = x

HOPE you GOT the answer!!



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