Question

va rog saa ajutați la punctul b trebuie sa dea x=-3pe 5 și la punctul c trebuie sa dea x=-20 pe 3)​

Answer 1

Răspuns:

b)x/6 - 1/2 + x/6 = (3x-1)/4

Numitor comun 12

2x-6+2x=3(3x-1)

4x-6=9x-3

-5x=3 =>x=-3/5

c)(15/22 • 11/6 - 4/3)•(3x+2)/3 = 4/3 - 5/6

(5/4 - 4/3)•(3x+2)/3 = 1/2

-(3x+2)/36 = 1/2

-2(3x+2)=36

-6x-4=36

-6x=40

x=-20/3

Answer 2

Răspuns:

1/4·(2x-6)/3+x/6=(3x-1)/4

(2x-6)/12+x/6=(3x-1)/4

2x-6+2x=9x-3

-6+3=9x-4x

5x=-3

x=-3/5

_______

(15/22·11/6-4/3)·(3x+2)/3=4/3-5/6

(5/4 - 4/3)•(3x+2)/3 = 1/2

-(3x+2)/36 = 1/2

-2(3x+2)=36

-6x-4=36

-6x=40

x=-20/3