Question

If a/b - d = 2c /b ,find the value of c when a =3 , b = 4 and d = -5. *​

Answer 1

`\boxed{ c=(23)/(2) }`

Explanation:

`(a)/(b) - d = (2c)/(b)`

Once
`a =3 , b = 4, d = -5`

`(3)/(4) - (-5) = (2c)/(4)`

`(3)/(4) +5 = (c)/(2)`

`(3)/(4) +(20)/(4) = (c)/(2)`

`(23)/(4) = (c)/(2)`

`4c = 46`

`\boxed{ c=(23)/(2) }`

Answer 2

11.5

Explanation:

Make c the subject of the formula

C=(a-db) /2

Substitute the values of a, b and d into the equation