3 years ago

What does x equal5x+2y=31x+2y=6

1 answer:

4 0

$\underline{-\left\{\begin{array}{ccc}5x+2y=3\\x+2y=6\end{array}\right }\ \ \ \ |subtract\ both\ sides\\\\4x=-3\ \ \ |:4\\\\x=-\dfrac{3}{4}\to x=-0.75$

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