Question

Despejar la variable x

Answer 1

Respuesta:

(19-3x)/8=5 ;

(19-3x)=5×8___-3x=40-19=21

x=-21/3_____x=-7

------------------------------------------------

(4x-21)/-3=-13_____(4x-21)=-13×-3

4x=39+21____4x=60___x=60/4

x=15

-------------------------------------------------

21/(23-5x)=-13

21=-13(23-5x)____23-5x=-21/13

-5x=-(21/13)-23__x=[-(21/13)-23]÷-5

x=4.923

------------------------------------------------

(2x+1)/7=11/2____2x+1=7(11/2)

2x=77/2-1=75/2___x=(75/2)/2

x=18.75

-----------------------------------------------

8x+11=0___8x=-11___x=-11/8

x=-1.375

------------------------------------------------

13x-14=5x-18____8x=-18+14=-4

x=-4/8 x=-0.5

------------------------------------ -----------

17-2x+31=8x-29-3x

48-2x=5x-29

7x=48+29____x=77/7

x=11

uuuuffff al fin