Question

26. If x-1/x+1=7/9, then x =​

Answer 1

Answer:

x-1/x+1=7/9

9x-9=7x+7

9x-7x=7+9

2x=16

x=8

Answer 2

Answer:

$x - 1 \div x + 1 = 7 \div 9 \\ 9(x - 1) = 7(x + 1) \\ 9x - 9 = 7x + 7 \\ 9x - 7x = 7 + 9 \\ 2x = 16 \\ x = 16 \div 2 \\ x = 8$

Step-by-step explanation:

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