As both equation are solved to y, we can equalize them, therefore we get that
[tex]\begin{gathered} x-10=2x+5\rightarrow \\ x-2x=5+10 \\ -x=15 \\ x=-15 \end{gathered}[/tex]and if x=-15 we get that y is
[tex]y=-15-10=-25[/tex]So the answer is (-15,-25)
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