Question

solve the equation z/z+15=4/9

Answer 1

$\frac{z}{z + 15} = \frac{4}{9} \\ \\ by \: cross \: multiplication \: \\ \\ we \: get \\ \\ 9z = 4z + 60 \\ \\ 9 z- 4z = 60 \\ \\ 5z = 60 \\ \\ z = \frac{60}{5} = 12 \\ \\ hope \: this \: helps \: you$
(^^)✌

Answer 2

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

$= > 9z = 4(z + 15)$

$= > 9z = 4 z+ 60$

$= > 9 z- 4z = 60$

$= > 5z = 60$

$= > z = \frac{60}{5} = 12$

#mark it as brainliest