Algebra 2EasyLinear Systems & Matrices ShareLinear Systems & Matrices · Easy problemSolve using Cramer's Rule: {2x+y=7x−y=−1\begin{cases} 2x + y = 7 \\ x - y = -1 \end{cases}{2x+y=7x−y=−1A(2,3)(2,3)(2,3)B(−2,3)(-2, 3)(−2,3)C(2,−3)(2, -3)(2,−3)D(3,2)(3, 2)(3,2)Check Show answer Walk through it step by step Practice more like this Review this concept