Question

Question 2(f)
Give first the step you will use to separate the variable and then solve the equation:
$\frac{z}{3}=\frac{5}{4}$

Answer 1

$\frac{z}{3}=\frac{5}{4}\Rightarrow \frac{z}{3}\times 3=\frac{5}{4}\times 3$ [Multiplying both sides by 3]
$\Rightarrow z=\frac{15}{4}$