Algebra 1HardSystems of Equations ShareSystems of Equations · Hard problemHow many solutions does this system have?{−5x+7y=−8−20x+28y=−32\begin{cases} - 5 x + 7 y = -8 \\ - 20 x + 28 y = -32 \end{cases}{−5x+7y=−8−20x+28y=−32Aexactly one solutionBno solutionCinfinitely many solutionsCheck Show answer Walk through it step by step Practice more like this Review this concept