how u solve this problem
7x-y=6 -7x+y=-6

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10-01-2019
Mathematics

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how u solve this problem
7x-y=6 -7x+y=-6

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Nearly 50% of water sources in the United States are believed to be polluted. true or false? Explain please?

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gmany gmany · Answer 1 · 2019-01-10T16:00:30+01:00

gmany gmany

10-01-2019

[tex]\underline{+\left\{\begin{array}{ccc}7x-y=6\\-7x+y=-6\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad0=0\\\\\text{Infinitely many solutions}\\\\\left\{\begin{array}{ccc}x\in\mathbb{R}\\y=7x-6\end{array}\right[/tex]

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how u solve this problem 7x-y=6 -7x+y=-6

Respuesta :

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how u solve this problem
7x-y=6 -7x+y=-6