SOLUTION: what is x and y: 0.5x + 1.5y = 5 x + y = -10

Algebra ->  Systems-of-equations -> SOLUTION: what is x and y: 0.5x + 1.5y = 5 x + y = -10      Log On


   



Question 350501: what is x and y:
0.5x + 1.5y = 5
x + y = -10

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.0.5x+%2B+1.5y+=+5
2.x+%2B+y+=+-10
Multiply eq. 1 by (-2) and add to eq. 2,
-x-3y%2Bx%2By=-10-10
-2y=-20
highlight%28y=10%29
Then from eq. 1,
x%2B10=-10
highlight%28x=-20%29