Question

Resolva a equação de 1º grau:

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

Answer 1

5x/4 - 3x - 9/6 = 9/2
(5x -12x)/4 -3/2 = 9/2
(5x - 12x)/4 = 9/2 +3/2
-7x/4 = 12/2
-7x/4= 6
-7x=24
x = - 24/7

Answer 2

5x/4- 3x-9/6=9/2 ∴5x/4-3x=9/2+9/6∴5x/4-3x = 9/2+3/2 ∴5x/4-3x =6∴5x - 12x=24∴ -7x=24∴x=-24/7