Question
Determine whether the following systems have no solution, an infinite number of solutions or a unique solution. \text { 1. }\left\{\begin{array}{rrr} 25 x+15 y & =15 \\ -15 x-9 y & =-9 \\ -30 x-18 y & =-18 \end{array}\right. \text { 2. }\left\{\begin{array}{rrr} -x+ & 3 y=7 \\ -4 x+ & 3 y=6 \\ -19 x+21 y & =46 \end{ar
Question image 1Question image 2Question image 3Question image 4