У * (58-27) = 62; (5-x) * 3=4x-6; (3+x) * 5-3x=57; (a+6719+5737) - (5610+2048) = 4509+3492; (196+79-y) + 2999+1609=3007+1602

1) у * (58-27) = 62

31 у=62

у=62:31

у=2;

2) (5-x) * 3=4x-6

15-3 х=4 х-6

-3 х-4 х=-6-15

-7 х=-21

х=-21: (-7)

х=3;

3) (3+x) * 5-3x=57

15+5 х-3 х=57

2 х=57-15

2 х=42

х=42:2

х=21;

4) (a+6719+5737) - (5610+2048) = 4509+3492

а+12456-7658=8001

а+4798=8001

а=8001-4798

а=3203;

5) (196+79-y) + 2999+1609=3007+1602

275-у+4608=4609

-у=4609-275-4608

-у=-274

у=274

1) у*31=62

31 у=62

у=2

2) 15-3 х=4 х-6

-3 х-4 х=-15-6

-7 х=-21

х=3

3) 15+5 х-3 х=57

2 х=57-15

2 х=42

х=21

4) а+12456-7658=8001

а+4798=8001

а=8001-4798

а=3203

5) 275-у+4608=4609

-у=-274

у=274