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1. 85:Х=17
2. В*27=459
3. (Х+74)-91=35
4. 54-(Х-19)=38
5. Х-479=164
6. 62-(х-23)=34
7. (х+83)-92+45
8. Х*43=2451

85:х=17х=85/17х=5_____в*27=459в=459/27в=17______(х+74)-91=35х+74=91+35х+74=126х=126-74=52_____54-(х-19)=38х-19=54-38х-19=16х=19+16х=35____х-479=164х=479+164х=643____62-(х-23)=34х-23=62-34х-23=28х=28+23х=51____(х+83)-92=45х+83=92+45х+83=137х=137-83х=54____х*43=2451х=2451/43х=57

1.85:x=17x=85:17x=52.B*27=459B=459:27B=173.(x+74)-91=35x+74-91=35x-17=35x=35+17x =524.54-(Х-19)=38 73-x=38-x=38-73-x=-35x=355.Х-479=164x=479+164x=6346.62-(х-23)=34 85-x=34-x=34-85-x=-51x=517.(х+83)-92=45 x+83-92=45x -9=45x=45+9x=548.Х*43=245143x=2451x=2451:43x=57