Question

Rozwiąż równania

3(2x +3) = x - 1

3(x - 2) = x

4 = 2 : (x - 1)

4(x - 1) = 3(x +1)

x + 1 = 1+ 2x - 1

x = 1 -3(x +1)

Answer 1

3(2x +3) = x - 1

6x+9=x-1

5x=-10

x=-2

3(x - 2) = x

3x-6=x

2x=6

x=3

4 = 2 : (x - 1) ||* (x-1)

4x-4=2

4x=6

x=1,5

 

4(x - 1) = 3(x +1)

4x-4=3x+3

x=7

 

 

x + 1 = 1+ 2x - 1

-x=-1

x=1

 

x = 1 -3(x +1)

x=1-3x-3

4x=-2

x=-1/2