tierasuzaanedeese tierasuzaanedeese

10-01-2019
Mathematics

contestada

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

Respuesta :

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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