SOLUTION: I am totally confused here this problem says solve by elimination 0.3x-0.2y=4 0.5x+0.5y=45/23 It says the solution must be in fraction form can someone help me please? Thanks

Algebra ->  Linear-equations -> SOLUTION: I am totally confused here this problem says solve by elimination 0.3x-0.2y=4 0.5x+0.5y=45/23 It says the solution must be in fraction form can someone help me please? Thanks      Log On


   

Question 248206: I am totally confused here this problem says solve by elimination
0.3x-0.2y=4
0.5x+0.5y=45/23
It says the solution must be in fraction form can someone help me please? Thanks
Found 2 solutions by Fombitz, stanbon:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
+0.3x-0.2y=4+
+0.5x%2B0.5y=45%2F23
First step, multiply boths sides by 10.
1.+3x-2y=40
2.+5x%2B5y=450%2F23
Multiply eq. 1 by 5 and eq. 2 by 2 and add them to eliminate y.
15x-10y%2B10x%2B10y=200%2B900%2F23
25x=4600%2F23%2B900%2F23
25x=5500%2F23
x=220%2F23
Now use either equation to solve for y.
5x%2B5y=450%2F23
1100%2F23%2B5y=450%2F23
5y=-650%2F23
y=-130%2F23

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A solution was posted a couple of days ago.
Cheers,
Stan H.