Question

1)

1-x

---- = -1

3

2)

x - 1

x - 1 = --------

2

Proszę o oblicznia .

Answer 1

(1 - x)/3 = - 1

1 - x = - 3

- x = - 3 - 1

- x = - 4

x = 4

2)

x - 1 = (x - 1)/2

2(x - 1) = x - 1

2x - 2 = x - 1

2x - x = - 1 + 2

x = 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Answer 2

1) obustronnie razy 3

1- x =-3

-x= -4

x= 4

 

2)

obustronnie razy 2

2x - 2 = x -1

x= -1 +2

x=1