SOLUTION: could you please help me in Solving using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -7x + 5y = -56

Algebra ->  Linear-equations -> SOLUTION: could you please help me in Solving using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -7x + 5y = -56       Log On


   

Question 614942: could you please help me in Solving using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.

-7x + 5y = -56
-21x – 2y = -168
greatly appreciated
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
could you please help me in Solving using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
..
-7x + 5y = -56
-21x – 2y = -168
..
multiply first equation by 3
-21x + 15y = -168
-21x – 2y = -168
subtract
17y=0
y=0
-7x+5y=-56
7x+0=56
x=56/7
x=8
solution: (8,0)