baraKas2e7kelimpo baraKas2e7kelimpo

11-07-2016
Mathematics

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Choose the correct first step(s) to solve the system using elimination. 4x + 7y = 6 and 6x + y = 2

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dalendrk dalendrk

17-07-2016

[tex]\left\{\begin{array}{ccc}4x+7y=6\\6x+y=2&|multiply\ both\ sides\ by\ (-7)\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}4x+7y=6\\-42x-7y=-14\end{array}\right}\\.\ \ \ -38x=-8[/tex]

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