3(1 - 2d) - d = 3 - 6d - d = 3 - 7d = -2 \Rightarrow 7d = 5 \Rightarrow d = rac{5}{7},\ c = 1 - rac{10}{7} = -rac{3}{7}

Wed, 06 May 2026 10:39:51 +0000

Content under review