Question

If a = 7 , b = 3 , c = 9, and d = 1, find the value of the following expression

Answer 1

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

start replacing the letters with the corresponding number

`(7-3)/(9-1)`

simplify both numerator and denominator

`(4)/(8)`

divide both numerator and denominator by 4

`(1)/(2)=0.5`