Answer:
The formula is [tex]x=\frac{y+pq}{2}[/tex]
Step-by-step explanation:
Given formula is
y = 2x - pq
Adding pq on both sides
y+pq = 2x - pq + pq
y+pq = 2x
2x = y+pq
Dividing both sides by 2
[tex]\frac{2x}{2}=\frac{y+pq}{2}\\\\x=\frac{y+pq}{2}[/tex]