25x+49=149
(x-12)•8=56
124:(y-5)=31
43m-215=473

44:x+9=20
181-8x=45
3x+7x+18=178
34x+68=68

25x+49=14925х=149-4925х=100х=4(x-12)•8=568х-96=568х=56+968х=152х=19124:(y-5)=31124*1/31=у-54=у-5-у=-9у=943m-215=47343m=473+21543y=688y=1644:x+9=20-x/44=-1/11x=4181-8x=45-8х=45-181-8х=-136х=173x+7x+18=17810х=178-1810х=160х=1634x+68=6834х=68-6834х=0х=0

25х+49=149.25х=149-4925х=100х=100:25х=4;(х-12)*8=56х-12=56:8х-12=7х=12+7х=19;124:(у-5)=31у-5=124:31у-5=4у=5+4у=9;43m-215=47343m=473+21543m=688m=688:43m=16;