anonymous
  • anonymous
If 9x-8y=4 and 2x-3y=-4, then what is the value of x?
Algebra
chestercat
  • chestercat
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anonymous
  • anonymous
\[9x-8y=4\] \[2x-3y=-4\] There are several ways to solve this including matrices but the simplest way to do this would be to solve one of these for one variable and then plug that into another. You could also solve this using that as a system of equations and multiply one of the equations by a constant that will cause one of the variables to disappear when the equations are added are subtracted. Your choice
anonymous
  • anonymous
???Can you help me through the problem??
anonymous
  • anonymous
This is another good point. Okay so what is the first thing you want to do given what we told you?

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anonymous
  • anonymous
slove for one variable first

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