Mathematics, 25.01.2020 10:31 djfluffyman999
Solveing systems of equations by substitution y=6x-11 -2x-3y=-7
Answers: 3
![\bf -2x-18x+33=-7\implies -20x+33=-7\implies -20x=-40 \\\\\\ x=\cfrac{-40}{-20}\implies \blacktriangleright x=2 \blacktriangleleft \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{since we know that }}{y=6x-11}\implies y=6(2)-11\implies y=12-11\implies \blacktriangleright y=1 \blacktriangleleft \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill (2,1)~\hfill](/tpl/images/0470/4607/6ea0a.png)
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Solveing systems of equations by substitution y=6x-11 -2x-3y=-7...
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