РЕШИТЕ УРАВНЕНИЯ ,ПОЖАЛУЙСТА СРОЧНО!!!!!!!!
1)m:1,8+2,05=9
2)K;8-6,09=6
3)Х:78,09+21,91=0,736

m/1.8+2.05=9m/1.8=9-2.05m/1.8=6.95m=6.95*1.8m=12.51k/8-6.09=6k/8=6+6.09k/8=12.09k=12.09*8k=96.72x/78.09+21.91=0.736x/78.09=0.736-21.91x/78.09=-21.174x=-21.174*78.09x=-1653.47766