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OpenStudy (anonymous):
What is a possible first step in eliminating a variable in the following system of equations?x + y = 3 3x – 4y = 23
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OpenStudy (anonymous):
The easiest way is usually to solve for one of the variables in the first equation and substitute it in to the second equation. So solve for x or y in the first, then plug that value as x or y into the second.
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