Question

Solve each equation or formula for the specified variable.

$4y-2n=9$, for y.

Short answer

The required answer is $y=\frac{9+2n}{4}$.

Step-by-step solution

Step 1- Add 2n on both sides

Perform addition of 2n on both the sides of equation.

$\begin{array}{c}4y-2n+2n=9+2n\\ 4y=9+2n\end{array}$

– Isolate the variable y

Perform division of 4 on both the sides of the equation.

$\begin{array}{c}\frac{4y}{4}=\frac{9+2n}{4}\\ y=\frac{9+2n}{4}\end{array}$

Step 3- Make the conclusion

As the variable y is isolated so the value equivalent to it represents its value.