{"text":" Solve a system of equations with three variables\n\n\\begin{array}{l}\\n2 x+y+3 z=-2 \\\\\\nx-y-z=-3 \\\\\\n3 x-2 y+3 z=-12\\n\\end{array}[imath]2 x+y+3 z=-2 [/imath] [imath]x-y-z=-3 [/imath] [imath]3 x-2 y+3 z=-12[/imath] \n\n\n", "url":"https://www.youtube.com/watch?v=syx8CpPFOzQ"}