The document presents equations to solve for variables B, C, and D. It shows that B can be expressed as [1-A] multiplied by 15. It then shows that C can be expressed as the quantity [1+A] multiplied by 16. Finally, it shows that D can be expressed as the quantity [1-A] multiplied by 17.

1. • B = - A -------- from eq. 7
• = - [1+ ]
• = - −
• = -
• = −
• B = [1 - ] 15

2. • To find C & D = =
• = C - D
• = C - D
• = C - ( - C) ----from eq. 8
• = C - + C
• 2C = +
• 2C = ( + )
• C =
+
• C = [1 + ] 16

3. • = C + D
• D = - C
• = - [1 + ]
• D = - - +
• D = ( - ) -
• D = -
• D = [1 - ]
17