Question

oblicz : 1/3x - 2 = x + 2 1 - 6/7x = 4/7 6 (1/4x - 2) = 18

Answer 1

1/3x-x=2+2

-2/3x=4  /:(-2/3)

x=-4*3/2

x=-6

 

1-6/7x=4/7

-6/7x=4/7-1

-6/7x=-3/7  /:(-6/7)

x=3/7*7/6

x=1/2

 

3/2x-12=18

3/2x=18+12  /:3/2

x=30*2/3

x=20