SOLUTION: how do you solve this linear system by using substitution? 0.5x+y=9 1.6x+0.2y=13

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Question 703023: how do you solve this linear system by using substitution?
0.5x+y=9
1.6x+0.2y=13
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
0.5x+y=9
1.6x+0.2y=13
----
y = 9-0.5x
---
Substitute for "y" and solve for "x":
1.6x + 0.2(9-0.5x) = 13
1.6x + 1.8 -0.01x = 13
------
1.59x = 11.2
x = 7.044
------
Solve for "y":
y = 9-0.5(7.044)
-----
y = 5.48
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Cheers,
Stan H.
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