Question

alguém me ajuda pelo amor de Deus​

Answer 1

Boa Noite!

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

    6x-4=4x+4 -------- 2x=8 ------ x=4

B)  3/(x-8)=6/(x+2)   ------- x+2=2x-16  - ------  x=18

C)  5-x/12-x=11+x/12-x ----- (12+x)(5-x)=(12-x)(11+x)

  60-12x+5x-x^2=132+12x-11x-x^2  ------ 60-8x=132+x  

  -72=9x -----  x=-8

D)  7-2x/2x-2x+1/14x=1  ----  [7(7-2x) - (2x+1)]=14x

    49-14x-2x-1=14x   -----  48-16x=14x

    48=30x  ---- x=1,6