Question

if x minus 1 by X + 1 is equal to 7 upon 9 then x is equal to

Answer 1

Answer:

X = 8

Step-by-step explanation:

x-1/x+1 = 7/9

9 (x-1)= 7(x+1)

9x-9 = 7x+7.

9x -7x= +7 +9

2x = 16

x=8

value of x is 8

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