Question

3. 1f * a/b = 7/9 then the value of (a + b)/(a - b) is:​

Answer 1

Answer:

3. 1f * a/b = 7/9 then the value of (a + b)/(a - b) is:

Answer 2

Answer:

The value is -8

Step-by-step explanation:

Given : a/b = 7/9

Solution : a/b = 7/9

∴ a = 7b/9

then (a+b)/(a-b) = (7b/9 + b) / (7b/9 - b)

                         = (7b+9b)/9 / (7b-9b)/9

                         = 16b/-2b

                         = - 8