Question

If z/z+15=4/9, then the value of z is

Answer 1

Step-by-step explanation:

z/(z+15) =4/9

cross multiplication

9z=4(z+15)

9z=4z+60

5z=60

z=60/5

z=12

Answer 2

z = 12

Question :

If z/(z+15) = 4/9, then find the value of z .

Answer :

Given :

The equation z/( z+15) =4/9

To find :

The value of z

Solution :

We need to perform linear equation in the given case,

z/(z+15) = 4/9

=> z = (z+15) × 4/9

=> z = 4z/9 + 20/3

=> 20/3 = z - 4z/9

=> 20/3 = (9z - 4z)/9

=> 20/3 = 5z/9

=> 20*9 = 3*5z

=> 180 = 15z

Hence, z = 12

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