Question

z/z+15=4/9 solve linear equation​

Answer 1

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Answer 2

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${\huge{\bold{\blue{\bigstar{\boxed{\boxed{\bf{Solution}}}}}}}}$

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

$\sf z \times 9 = 4\times (z+15)$

$\sf9z = 4z + 60$

$\sf 9z - 4z = 60$

$\sf 5z = 60$

$\sf z = \dfrac{\cancel60}{\cancel5}$

$\sf z = 12$

${\bold{\blue{\boxed{\boxed{\boxed{\bf{z = 12}}}}}}}$

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