SOLUTION: Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent. x+5y=10 -2x-10y=-20

Algebra ->  Algebra  -> College  -> Linear Algebra -> SOLUTION: Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent. x+5y=10 -2x-10y=-20       Log On


   

Question 74729: Solve each of the following systems by addition. If a unique solution does not exist, state
whether the system is inconsistent or dependent.
x+5y=10
-2x-10y=-20

Answer by jim_thompson5910(21667) About Me  (Show Source):
You can put this solution on YOUR website!
2%28x%2B5y%29=2%2810%29Multiply the 1st equation by 2
+-2x-10y=-20
------------------
0=0
This shows that there are an infinite number of solutions and that the system is dependent