Решить 1) 84,7: (х+2,7) = 11 2) 8,65+3,45) : х=-5 3) у+1,6) * (-12) = 76,8

1) 84,7: (х+2,7) = 11

11 (x + 2.7) = 84.7

11x + 29.7 = 84.7

11x = 84.7 - 29.7

11x = 55

x = 55/11

x = 5

2) (8,65+3,45) : х=-5

-5x = 12.1

x = - 12.1/5

x = - 2.42

3) (у+1,6) * (-12) = 76,8

-12y + 19.2 = 76.8

-12y = 76.8 - 19.2

-12y = 57.6

y = - 57.6/12

y = - 4.8