Question

Solve the following equations. (3) z/z+15=4/9

Answer 1

Solution:

z/(z+15) = 4/9

Do the cross multiplication , we get

=> 9z = 4(z+15)

=> 9z = 4z + 60

=> 9z - 4z = 60

=> 5z = 60

=> z = 60/5

=> z = 12

Therefore,

z = 12

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