5 (х-9) = - 2

3=4 (х+2)

-7=5 (х+5)

9=5 (х+9)

7 (х-1) = 3 х

5 (х-9) = - 2

5x - 45 = - 2

5x = - 2 + 45

5x = 43

x = 8,6

3=4 (х+2)

3 = 4x + 8

3 - 8 = 4x

-5 = 4x

x = - 1,25

-7=5 (х+5)

-7 = 5x + 25

-7 - 25 = 5x

-32 = 5x

x = - 6,4

9=5 (х+9)

9 = 5x + 45

9 - 45 = 5x

5x = - 36

x = - 7,2

7 (х-1) = 3 х

7x - 7 = 3x

7x - 3x = 7

4x = 7

x = 1,75

5 (х-9) = - 2

5x - 45 = - 2

5x = - 2 + 45

5x = 43

x = 8,6

3=4 (х+2)

3 = 4x + 8

3 - 8 = 4x

-5 = 4x

x = - 1,25

-7=5 (х+5)

-7 = 5x + 25

-7 - 25 = 5x

-32 = 5x

x = - 6,4

9=5 (х+9)

9 = 5x + 45

9 - 45 = 5x

5x = - 36

x = - 7,2

7 (х-1) = 3 х

7x - 7 = 3x

7x - 3x = 7

4x = 7

x = 1,75