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Question -

Solve the equation.
┬аz/(z + 15) = 4/9



Answer -

z/(z + 15) = 4/9
тЗТ z = 4/9 (z + 15)
тЗТ 9z = 4(z + 15)
тЗТ 9z = 4z + 60
тЗТ 9z тАУ 4z = 60
тЗТ 5z = 60
тЗТ z = 12

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