Question

equação
x-7/5 + 2 = x+8/18

Answer 1

x-7/5 +2=x+8/18

18x-126 + 180 =5x+40

18x-5x=40+126-180

13x=166-180

13x=-14

x=-14/13

Answer 2

x - 7   + 2  =  x +  8
------             ----------
    5                 18

mmc (5,18) = 90

5,18: 2
5,9: 3
5,3: 3
5,1: 5
------------
1,1  =  2.3.3.5 = 2.9.5 = 2.45 = 90


18.(x - 7) + 180         5.(x + 8)
----------------------  = --------------
     90                            90

18x - 126 + 180 = 5x + 40

18x + 54 = 5x + 40

18x - 5x = 40 - 54

13x = - 14

x = - 14
       ------
        13