Решить уравнения 3y+5y=9,6. a+a+8,154=32. 7k-4k-55,2=63,12

3y+5y=9,6.8y=9,6y=9,6:8y=1,2========== a+a+8,154=32.2a+8,154=322a=32-8,1542a=23,846a=23,846:2a=11,923================= 7k-4k-55,2=63,123k-55,2=63,123k=63,12+55,23k=118,32k=118,32:3k=39,44