Answer:
What?
Step-by-step explanation:
-5.4v+0.3v= -5.1v
Because both numbers have a common variable of 'v,' they can be combined.
Answer:
A = (1/2)(B + C + D) ⇒ 2A = B + C + D
B = (1/3)(A + C + D) ⇒ 3B = A + C + D
C = (1/4)(A + B + D) ⇒ 4C = A + B + D
D = 78
Substitute 78 for D. Solve the three equations in three variables