Question

If
$if(x + y) = 89 then(y - x) =?$
​

Answer 1

Answer:

y-x = 10

Step-by-step explanation:

y-x = ? ------------------(1)

x+y = 89----------------(2)

=> y = 89-x

putting the value of y in (1),

y-x = ?

=> 89-x -x = ?

=> -2x = -89

=> x = 89/2 = 44.5

putting the value of x in (1)

44.5 + y = 89

=> y = 89-44.5

=> y = 34.5

putting the value of x and y in (1)

y-x = ?

=> 34.5 - 44.5 = ?

=> 10

hope it helps you :-)✌