Question

z
$\frac{z}{z + 15 } = \frac{4}{9}$

Answer 1

❤HOLA DEAR❤

$\frac{z}{z + 15} = \frac{4}{9}$

Cross multiple each other,

$9z = 4z + 60$

$9z - 4z = 60$

$5z = 60$

$z = 12$

Answer 2

Hey there!!♥️

$\dfrac{z}{z + 15 }$ = $\dfrac{4}{9}$

9z = 4( z + 15)

9z = 4z + 60

5z = 60

z = $\dfrac{60}{5}$

z = 12

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HOPE IT HELPS YOU♥️