Algebra 1MediumSystems of Equations ShareSystems of Equations · Medium problemSolve the system for xxx and yyy.{8x+7y=−15x+7y=23\begin{cases} 8 x + 7 y = -1 \\ 5 x + 7 y = 23 \end{cases}{8x+7y=−15x+7y=23 Show answer Walk through it step by step Practice more like this Review this concept