Question

qual o resultado dessa equação 5x/4-3x-9/6=9/2

Answer 1

MMC(4,6,2)=12

5x/4-3x-9/6=9/2

3(5x)/12+2(-3x-9)/12=6(9)/12

15x/12-6x-18/12=54/12

15x-6x-18=54

9x=54+18

9x=72

x=72/9

x=8

Answer 2

5x/4-3x-9/6=9/2
5x - 3x - 9 = 9                      mmc = 12
 4         6      2

15x - 2(3x - 9) = 54

15x - 6x + 54 = 54

9x = 54 - 54

9x = 0

x = 0