Question

Solve the following equation zbyz+15 is equal to 4 by 9​

Answer 1

Answer:

z=12

Step-by-step explanation:

z/(z+15)=4/9

=>9z=4(z+15)

=>9z=4z+60

=>9z-4z=60

=>5z=60

=>z=12

Answer 2

$9z = 4z + 60 \\ 9z - 4z = 60 \\ 5z = 60 \\ z = 60 \div 5 \\ z = 12$