36+х =36 ,48-х =0 ,27:х =1 ,х :9=0 ,62*х =62 ,74:х =1
36+х=36 48-х=0 х=36-36=0 х=48-0=48 27:х=1 х:9=0 х=27:1=27 х=0*9=0 62*х=62 74:х=1 х=62:62=1 х=74