1) 4,37 + 6,7x = 7,75 + 9,3x 

6,7x + (-9,3x) = 7,75 + (-4,37) 

6,7x - 9,3x = 7,75 - 4,37

-2,6x = 3,38

X = 3,38/(-2,6)

X = -1,3

Ответ: -1,3

2) 4*(3 - x) - 11 = 7*(2x - 5)

4*3 - 4*x - 11 = 7*2x - 7*5

12 - 4x - 11 = 14x - 35

-4x - 14x = -35 - 12 + 11

-18x = -47 + 11

-18 x = -36

X = -36/-18

X = 2

Ответ: 2