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Attempt following question by selecting a choice to answer.
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Which of the following equations would you use to isolate the variable?
10x + 13y = 1    [Equation 1]
x - 9y = - 8   [Equation 2]
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A.  cEquation 1
B.  cEquation 2
C.  cBoth Equation 1 and Equation 2
D.  cNeither Equation 1 nor Equation 2

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