Question

-5/9-x-1/6-2x+1/12=0

2+1/2(3x+5)=12

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

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

5/8(4x-0,3)-2(0,2x1/3)=173/80x

por favor me ajudem não sei fazer isso porque estava no hospital e já de cara o professor mando eu fazer isso

Answer 1

Boa tarde

-5/9 - x - 1/6 - 2x + 1/12 = 0
-20/36 - 36x/36 - 6/36 - 72x/36 + 3/36 = 0
-20 - 6 + 3 = 36x + 72x 
108x = -23 
x = -23/108 

2 + (3x + 5)/2 = 12
4 + 3x + 5 = 24
3x + 9 = 24
3x = 24 - 9 = 15
x = 5 

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

5x + (x/2-1)/3 = 3/4
5x + x/6 - 1/3 = 3/4 
60x/12 + 2x/12 - 4/12 = 9/12 
62x = 13
x = 13/62 

5(4x - 3/10)/8 - 2(x/5 + 1/3) = 173x/80
5*(40x - 3)/80 - 2*(3x + 5)/15 = 173x/80 
200x/80 - 15/80 - 6x/15 - 10/15 = 173x/80 
27x/80 - 15/80 = 6x/15 + 10/15 
(27x - 15)/80  = (6x + 10)/15 
15*(27x - 15) = 80*(6x + 10)
405x - 225 = 480x + 800
480x - 405x = -225 - 800
75x = -1025 
x = -1025/75
x = --41/3