Question

solve the equation or formula for the specified variable. mean the mean a of two numbers, x and y, is given by a = $\frac{x + y}{2}$. solve for y.

Explanation:

Step1: Multiply both sides by 2

$2A=x + y$

Step2: Isolate y

$y=2A - x$

Answer:

$y = 2A - x$