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1.
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Identify the number of solutions for the system of equations
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\begin{equation}y=7x-4\textrm{ },\textrm{ }7x-y=-4\end{equation}
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2.
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Identify the number of solutions for the system of equations
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\begin{equation}10x-10y=8\textrm{ },\textrm{ }-60x-60y=60\end{equation}
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3.
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Identify the number of solutions for the system of equations
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\begin{equation}y+6x=3\textrm{ },\textrm{ }6x+y=4\end{equation}
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4.
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Identify the number of solutions for the system of equations
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\begin{equation}5x+6y=5\textrm{ },\textrm{ }\frac{6}{5} \times x+y=8\end{equation}
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5.
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Identify the number of solutions for the system of equations
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\begin{equation}9x-4y=-8\textrm{ },\textrm{ }-5x+y=10\end{equation}
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6.
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Identify the number of solutions for the system of equations
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\begin{equation}y=9x+9\textrm{ },\textrm{ }8y-72x=72\end{equation}
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