Question

Ajutati-ma va rog la ecuatiile astea :
2x-1/3= -1/2 +1/3
x+1/2-1/2=3/4
2x/3- 5x/2=1-1/4
MAINE DAU TEST DIN ELE VA ROOOG!!

Answer 1

Răspuns:

Explicație pas cu pas:

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

2x - 1 = -3/6 = -1/2

2x = 1 - 1/2 = 1/2

x = 1/2 : 2 = 1/4

___________

(x + 1)/2 = 3/4 + 1/2 = 3/4 + 2/4 = 5/4

x + 1 = 2*5/4 = 5/2

x = 5/2 - 1 = 5/2 - 2/2 = 3/2

__________

2x/3 - 5x/2 = 1 - 1/4 = 4/4 - 1/4 = 3/4

8x/12 - 30x/12 = 9/12

-22x/12 = 9/12

-22x = 9

x = -9/22

Answer 2

(2x - 1)/3 = -³⁾1/2 + ²⁾1/3

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

2x - 1 = - 1/2

2x = 1 - 1/2

2x = 1/2

4x = 1

x = 1/4

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

(x + 1)/2 = 3/4 + 2/4

(x + 1)/2 = 5/4

x + 1 = 5/2

x = (5 - 2)/2

x = 3/2

2x/3 - 5x/2 = 1 - 1/4

(4x - 15x)/6 = (4 - 1)/4

- 11x/6 = 3/4

- 44x = 18

x = - 18/44

x = - 9/22