- #1
Math10
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Homework Statement
Use exact arithmetic to solve the following system:
10-3x-y=1,
x+y=0.
Homework Equations
I know that 10-3=0.001.
The Attempt at a Solution
Here's the work:
y=-x
10-3x+x=1
x(10-3+1)=1
x=1/(0.001+1)=1/1.001
y=-1/1.001 since y=-x
The answer for this problem is (1/1.001, -1/1.001) but this is a Linear Algebra problem. The work that I've shown above are Algebra 1 skills. I must use exact arithmetic to solve the system. How do I do so?