Question

1-Resolva as equações
A) x-1 x - 3
--------- + --------- = 6
2 3

B) x - 2 x + 1
------------ - ---------- = 4
3 4

C) 2x - 3 x + 1 x - 1
--------------- - ---------- = ---------
4 3 3

Answer 1

Resposta:

a)  x-1/2+x-3/3=6

3x-3+2x-6=36

5x-9=36

5x=36+9

x=45/5

x=9

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

 4x-6x-3=48

 -2x=48+3

   -2x=51

    x=-51/-2=-51/2

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

 6x-12x-4=4x-4

-6x-4x=4-4

-10x=0

  x=0/-10=0