Question

4x-5=11 6

(2x-3)=3(1+4x)-21

2/3x-6=1/3x

poprosil bym z obliczeniami.

z góry dzięki :)

Answer 1

 

4x-5=116

4x=121

 

 

 

 x=121/4

x=30,25

 

 

(2x-3) = 3(1+4x) - 21

 

 2x-3 = 3+12x -21

-3+21-3=-2x+12x

 

 15=10x

x=1,5

 

 

 

 

 2/3x-6 = 1/3x   |*3

 

 2x-18=x

x=18

 

 

Answer 2

4x - 5 = 11,6 

11,6 - 5 = 6,6

6,6 / 4 = 1,65

x = 1,65

___________

(2x - 3) = 3*(1 + 4x) - 21

21 + 4*x - 1 / 3 = 21 + 4*2 - 1 / 3 = 21 + 8 - 1 / 3 = 28 /  3 = 7

___________

2/3x - 6 = 1/3x

2/3 * x - 6 =  1/3 * x