Systems of Linear Equations: Two Linear Equations
Solving systems of equations by substitution
What is the true about the following equations system?
\[\lineqs{(-4y)+5x+9 &=& 0\cr 4y-5x-18 &=& 0\cr}\]
\[\lineqs{(-4y)+5x+9 &=& 0\cr 4y-5x-18 &=& 0\cr}\]
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